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Stay cozy and comfortable with our collection of warm undergarments designed for ultimate insulation. Crafted from soft, breathable materials, these essentials provide the perfect base layer for any cold-weather adventure. Whether you're layering up for outdoor activities or seeking extra warmth at home, our selection ensures you stay snug without sacrificing style. With a variety of fits and designs, you can find the ideal warm undergarments to keep you feeling your best all season long. Embrace the chill with confidence and comfort!
$55.00
that's why under armour built a baselayer that keeps you warm and dry without being bulky or riding up, so you can stay focused all season long. ... dual- layer fabric with an ultra- warm, brushed interior& a smooth, fast- drying exterior material wicks sweat&...
5
Fluffy Donna
Bought these for medical reasons… Really enjoy wearing them
5
Suzie7
Really nice pant, I loved it.
5
Jumpinjoe8766
My daughter loves these leggings when she plays flag football. keeps her warm in the colder moths but allows her to run freely
5
Simpleton1234
Great product. My daughter uses these for everything, including vb and they hold up great
5
J_Co
I 'm a tennis player& wear these leggings under a tennis skirt. In winter my outdoor tennis playing requires long leggings& long sleeves. The ColdGear Leggings material has a nice thickness, feels durable, has compression& is soft to the touch inside& out. The waistband is well designed. I like my athletic waistbands around my hip bones; therefore, I adjust all my legging waistbands to personal comfort. I 'm 5' 6 '' _112lbs. I wear UA x- small to be as fitted as possible. I ordered Tall because I like to cover my ankles. This length is about 3/4 '' too long on me, but not a bother since they 're leggings. I like these leggings very much for: Tennis- the compression feels great around my knees& hamstrings. Light Activity- softness, warmth& durability. Lounging- softness& the compression is helpful for circulation.
$28.00
Warm and washes well ... It keeps him warm during his soccer games. ... Keeps kid warm. ... These shirts are comfortable and warm. ... Great quality and holds warmth ... It ’s a great fit, keeps him...
5
Sportsmom3107
My son started coach pitch and was needing a long sleeve shirt to go under his jersey. It was still in the 40s and this kept him warm during the game and practices. It has multiple uses; when playing outside, on a cold rainy day or to layer under jerseys whether they play inside or out.
5
Ballmom151
Both my kids wear these long sleeves under their baseball/softball uniforms to stay warm on cold days. They are comfortable, warm and a good price.
5
RoSiih3032
My son love them, never takes them off and they are tru to size.
5
She108
My daughter plays softball and it gets quite cold sometimes. She says this shirt helps her stay warm and it is comfy.
5
Lizzzard skinsss
Great shirt with extra warmth for the kids outdoor activities
$67.97
WAS: $90.00*
fit fitted 1/4 zip technology ua base™ 4. 0 locks in your body ’s heat to deliver extreme warmth even in the brutal cold moisture transport system wicks sweat and dries quickly ua scent control prevents the growth of odor causing microbes to keep you feeling fresh design 4- way...
5
mwo131313
If you need a high- performance base layer for extreme cold, the UA Base 4. 0 ¼ Zip is one of the best options out there. Just bought my second one.
5
M2024
Great base layer, warm and comfortable
5
Jasonwithg
Good quality nice and warm
5
JKT91
amazingly, surprisingly warm.
5
Lawrence45
Purchased a Large. The fit& feel is nice. Only issue is it maybe a little too tight in forearms( if you like to roll- up your sleeves).
$35.00
It keeps her warm on cold days ... She prefers this of UA- more comfortable and keeps her warm. ... Kept my daughter warm while playing fall softball. ... They are warm, fitted and wash
5
LisaG1974
Did its job. Keeps warm and washes well would buy another.
5
aTut
I bought this for my daughter to wear under her softball jersey on cold days. She loves it.
5
Cstl
Perfect fit and keeps warm for cooler days during outside sports.
5
KEA17
Bought for track season. Perfect fit. Perfect weight.
5
SoccermomMel
It was exactly what we needed. It kept her warm the entire game.
$60.00
gear® fabric wicks moisture from the skin and circulates body heat to keep you warm ... compression fit shirt 4- way stretch material moves better in every direction mock neck design offers added coverage for a comfortable fit long sleeves deliver complete
5
Joel2325
Cold Gesr turtle neck never lets me down. Always keeps me warm during the winter& I had to get some new gear. Will be back for plenty more!
5
Muhamed Ali Hawk
100% Satisfied Like Always, My Forever Favorite Brand, I Bought Five In Black Color, All Fit Perfectly, Nice And Soft Material, Thank You UA.
5
Blackknight89
I bought this to wear on the golf course during cold weather. I don ’ t particularly like to over layer when playing. I like the tight fit and moc turtleneck. It is extremely comfortable and can even be worn in moderate to warm temperatures. It came out of the wash in perfect condition. I would recommend this product to friends and family.
5
Paulie84
Super comfy true to size and keeps u warm in cold weather
5
JE Eggers
Fits great, and keeps we warm
$19.99
WAS: $24.99*
two- layer engineering traps air between layers providing a natural barrier of warmth tagless design and flat seams provide a smooth fit and extra comfort rib cuffs and drop tail for added protection against
5
LALO4U
This is great for people who work outside keeping you warm and comfortable
5
nickname111111
i get cold easily. this helps. thank you very much
5
Ore76
I purchased this also for my father and he just loves it.
$40.00
They made all the difference and kept him warm all day! ... They kept him warm under his soccer uniform without over heating. ... The leggi gs are super warm and
5
Ash1889
Bought about a month ago and definitely will be buying more to have on hand!
5
BigTT
Bought for flag football since it was pocketless. Fits great as both base layer and stand alone.
5
su22
Perfect for my Grandson under his football and soccer uniform
5
soniarg76
My son loves these. They are pretty thick so will be warm for the winter months. They seem to run true to size.
5
Jennifer Arnold
Great fit, amazing quality, perfect for my son for football
$45.00
fit& design form- fitting baselayer our cold weather compression fabric offers warmth and supportive stretch technology moisture- wicking fabric absorbs moisture to help keep you dry and comfortable 50+ uv
5
Slab26
These leggings do the trick to keep you warm and dry in the wintery seasons when outside exercise beckons…!!!
5
caracj
Kept my son warm in 7 degree weather on our ski trip!
5
Acalheel
Needed for a really cold day and it actually helped pad under my baseball pants
5
Mando298
I bought this for soccer and its very warm so 10/10!
5
KCKasey
I bought these for my son to wear when snowmobiling and he loves the comfortable fit. He said they are also very warm and fit nicely when layering.
$74.97
WAS: $100.00*
Love them, extreme warmth, so much warmer than base 3, I like the looser fit in the legging ... fit fitted leggings inseam: 29 1/2 ” technology ua base™ 4. 0 locks in your body ’s heat to deliver extreme warmth even in the brutal cold moisture...
5
Mand4
Comfortable and warm, like that they are black and can be worn as a base layer or outer layer
5
Mom2025
Got this for my daughter, she is a teacher. Keeps her warm through her sedentary day. We 've tried other products with little success. The 4. 0 is perfect.
5
GT1976
The Under Armour base layer are the best thermals on the market!
5
mob1032
These leggings are very warm and great for watching football games in the winter.
5
Kristy w
The best cold weather gear I have gotten yet!
$11.97
WAS: $19.99*
The fit is perfect, it ’s warm and soft. ... Great thermals this my 3rd pair and they soft and keep you warm when needed ... Warm and comfy ... These kept me warmer on one of the coldest hunting days of the
$45.00
Warm at night, not too hot during the day. ... I mostly wear them in the 6 `` winter '' months, where they keep me comfortably warm, whatever the cabin
5
Otto B
These boxers are the only thing I wear. Running to skiing, and everything in between. As a lift opp I am skiing all day and these guys keep me dry and don ’ t stink! Fit is great and they stay put all day long which is a huge benefit.
5
David M
Breathable, smell resistant, comfy. I wear all day for both 16 hours days in the hospital and on the mountain
5
eldoctorcalvo
[ These are ridiculously comfortable and fit perfectly.
5
Daniel K
Fit great. Not itchy and have put them in dryer without shrinking.
5
Chris K
Switched to these boxers and have been pleased with the comfort, I don ’ t notice them ever, they don ’ t ride up and they wick sweat very well
$37.97
WAS: $60.00*
Warm and flexible; perfect for skiing as a base layer! ... Keeps his legs warm. ... Keeps legs really warm ... wear these daily for long days outdoor and they provide adequate
5
Tracey2020
These under armor thermals are a family favorite.
5
Mcdavid97
The base layer fit comfortably nice and snug. It kept me very warm as I was skating out in the cold winter weather.
5
Jdog523
I 've been wearing under my pants and they 've kept me warm during 0 degree weather
5
Avery111
These are great for my winter garage workouts. Slim layer fit really well under joggers. I always size up for tights and they fit nicely. Great amount of stretch, which I really need as a dancer.
5
LP25
Bought these for my husband and he loves them. He has a couple 3. 0 sets and has worm then for a least 6 years. They wear great.
$44.97
WAS: $60.00*
These are very comfortable and keep you warm. ... Very warm clothing. ... It keeps me warm without adding bulk while exercising in temps as low as 10 degrees. ... I was able to move freely and warm, its a great first
5
Micheile
Feels great keeps you warm
5
NHummingbird
Very comfortable and good for mild to moderate cold weather. I would recommend
5
Brian31
This 2. 0 is comfortable and warm. Perfect baselayer to shred the slopes with. Wicks moisture as advertised. Awesome shirt
5
Jeff H 150
Great fit and very comfortable. Very warm when out in the elements but not too hot while working inside. Would definitely buy another one.
5
Kpax1
This base layer is warm, comfortable and lightweight.
$55.00
dual- layer fabric with an ultra- warm, brushed interior and a smooth, fast- drying exterior material wicks sweat and dries fast mesh underarm panels for added ventilation where you need it mock neck construction for added coverage and warmth raglan
5
dmitch1989
used it for my sons baseball game kept me very warm good material
5
Roxtar
My daughter loves this when she plays golf and its cold
5
brother shoes
I wore this cold Gear due to our cold spring soccer games and it kept me warm.
5
Danielle Harris
The quality of product was great. The fit of item was accurate according to description.
5
Guido10
Daughter got this for her game in 22 degree weather and was good!
$19.99
WAS: $24.99*
warmth is so basic two- layer fabric engineering traps warm air between layers fabric weight: 5. 25 oz fiber content: both layers- 60% cotton/ 40% polyester crew neck set- in long sleeves flat seams to prevent chaffing tagless
5
DreaV
Keeps me warm, does n't ride up( great fit) and super soft!
$63.97
WAS: $100.00*
Works perfectly as a light undergarment for my scuba dive dry suit! ... Keeps me warm and I can roll up the sleeves if it gets too warm. ... fit fitted long sleeve baselayer technology ua base™ 4. 0 locks in your body ’s heat to deliver extreme...
5
Fits like a glove, great material, true sizing.
5
SK719
Keep me warm while doing ice rescue training
5
JohnG111
Absolutely amazing- wore on single digit weather and only my hands and feet were cold
5
Dh2207
I bought these for my boyfriend who is an avid hunter and Lineman, he loves them! They keep him warm without getting sweaty!
5
Jm6990
I don ’ t like wearing a coat in Wisconsin. I wanted a solution that provided warmth while still fitting my aesthetic. This base layer 4. 0 has been perfect for me. It ’s fitted, not bulky and makes a huge difference in keeping my chest and arms warm with just a long sleeve on top of it. I recommend!
$36.00
quad- blend fabric technology allows heat retention to keep you warm ... relaxed fit long sleeve shirt ultra- soft brushed interior offers all- day comfort and warmth true comfort stretch for ease of movement non- deforming design helps hold the shape tag- free...
$54.99
Great fitting, warm layer option ... He is very satisfied and says that they are warmer than other brands he has tried. ... Kept me warm at minus 20. ... Very warm, but comfortable to fit under jeans to layer up in the
5
MDV43
Comfortable. They fit full length. I am 6' 3. They did n't shrink when washed and they are just overall pretty awesome for thermals.
5
NancyG
These thermals fit well and keep me nice and toasty when I 'm outside.
5
Ppinner
I bought this product as Christmas present for my husband
5
MarcosD
These are baggier than most thermals but work great.
5
Jack sprat
Recent purchase, worn a few times. So much better than my old pair of thermals.
$43.97
WAS: $70.00*
fit fitted baselayer technology ua base™ 3. 0 all season baselayer is extremely versatile, providing midweight warmth and mobility to a variety of activity levels and cold temperatures moisture transport system wicks sweat and dries quickly ua scent control prevents the growth of...
5
JTBo
Excellent product…very warm
5
Base 3
Great feel true to size while being slightly snug which I prefer!
5
Kar1388
Super comfortable and snug fit. Perfect for cold weather
5
HB1153
I was pleasantly surprised by how warm this base layer really is. It made all the difference during outside chores this winter.
5
Proline1988
I work outside all year round minimum 8 hrs a day. I 've tried many different brands of long John's but nothing beats Under Armour Cold gear 3. 0. Keeps me warm and dry. Very comfortable to wear. Cost more than the traditional long johns but well worth it. I definitely recommend this product.
$51.97
WAS: $70.00*
fit fitted baselayer technology ua base™ 3. 0 all season baselayer is extremely versatile, providing midweight warmth and mobility to a variety of activity levels and cold temperatures moisture transport system wicks sweat and dries quickly ua scent control prevents the growth of...
5
NonaElk
As expected wonderful. It ’s my third one
5
Rtin93
Great material fits really well Definitely going to be useful when worn during colder weather and feel like going for a run at the time
5
BiaE
Really warm underlayer. Used to ski on freezing temp and this plus good ski jacket was enough… even when it was snowing… The only thing is that it feels way different then the 2. 0 shirt. I also have one of that and the 3. 0 is more stiff and feels smaller. Specially in the neck and chest.
5
mrsguzzie
I purchased this Base Layer 3 shirt when I visited our local outlet store to place an order for another Under Armour shirt I liked. This shirt is thicker than a normal under layer shirt but is still comfortable if you wanted to wear additional layers. The cut of the shirt is super nice you might not want to hide it, though! It has thumb hole openings which are nice. I wore it alone several times since I bought it and was pleased at how well it kept me warm. I liked it so much I went to get a second one. They had sold out of the 3s but I snagged a 2 at least! My only negative comment would be it looks wrinkled when you remove it from the dryer. I only air dried it so maybe some heat might have gotten the wrinkles out. It's black so not that noticeable. Great shirt. I tried to get a 2nd one so obviously am happy with my purchase!
5
Stacy321
My husband has a few base layers and he loves them. I love the women's cut/size. It fits well and is super warm
$48.99
WAS: $50.00*
Been looking for that well fitting and comfortable layer that will keep my kid warm during winter workouts and in early spring on the baseball field. ... Very well made and keeps you
5
IUBob
Under Armour has no rival in the category of cold weather gear. Their ColdGear is simply the best.
5
Langus
Love the style and as a big guy the fit was what I expected
5
Mymy00
Grandson is very pleased with this shirt plan on buying another
5
Baseballparent1
[ Been looking for that well fitting and comfortable layer that will keep my kid warm during winter workouts and in early spring on the baseball field. Just ordered several more.
5
Ray88
[ Sometimes I have baseball games in the morning and this cold gear long sleeve shirt works wonders for those cold mornings
$36.00
relaxed fit pants ultra- soft brushed interior offers all- day comfort and warmth true comfort stretch for ease of movement non- deforming design helps hold the shape tag- free design provides a fuss- free
$35.00
Super warm and comfortable underwear. ... icebreaker harnesses the performance qualities of natural fibers to offer an alternative to clothing based on petrochemical synthetics merino is an annually renewable fiber that naturally resists odors, keeps you cool when it ’s hot and...
5
S
[ Very comfortable and light weight. Ordered my usual size
5
Beth
[ Great fit and VERY fast drying. Great for everyday, sports and travel
5
Stephanie
[ Yes!! These are wonderful! We traveled 16 days in Italy with 3 pair of underwear! They were so easy to wash out and always were dry in the morning!
5
Hawkeye
[ Moves with your body. I do n't even notice it is there. Best Underwear Ever.
5
MTB Chick
[ These are the best underwear! I struggle to find underwear that do n't ride up. These stay in place!
$65.00
regular fit baselayer leggings constructed with 4- way stretch material that moves better in every direction ua ’s warmest baselayer yet, delivering extreme warmth in the extreme cold soft, brushed grid interior traps air, managing your body's microclimate to keep you...
5
Britt829
These are amazing! We love them. ❤️ My dad got my husband and I both a set for Christmas like 10 years ago or more. They are still in perfect condition. We use them for hunting, playing in the snow or anytime we have to be outside for long periods of time in the cold. When I go hunting and it's super cold or wind chill of- 15. I wear mine, my husband's and my under armour sweat pants under my hunting bibs. No need for a heater at all. My son told me he needed some bigger under layers so I automatically ordered him this set. He is going to be so excited when he gets the Christmas morning. If you have multiple children you definitely need to get these. They are such a good quality and will last for years if they are taken care of. The adults sizes are pretty unisex in the bottoms. The woman's top seems to be a little more fitted for the breast.
5
John Meincke
By far the best and warmest product you can buy. The sizing accurate. Spend the money and buy this instead of the cheaper, knock offs that do not perform as well.
5
Zay63
These are great! They keep me warm in the coldest weather. I ’ m always cold so these are a blessing for me because they keep me warm and they are not bulky. They wash up great.
$29.99
Thermal bottoms keeping me warm ... This is the first time I 've purchased or worn these pants and I like how they feel. ... Wonderful fitting thermal bottoms arrived just in time for the
5
aggielre2000
Love these, kept me appropriately warm on the slopes
5
Seabass76
This is the first time I 've purchased or worn these pants and I like how they feel.
5
SteveJ19
Wonderful fitting thermal bottoms arrived just in time for the snow. Free shipping and three- day turnaround were pluses.
$57.99
These Undergarments were a gift to my son. ... He is very satisfied, says this helps keep him warm better than other brands he has tried. ... Keeps me super
5
Kellieruth
I bought this for a trip to Colorado. Worked great in cold temperatures and washes up to look brand new.
5
Jay64inTexas
I bought two of these in preparation of a freezing winter weather storm. I could not be happier with the quality. Theese are great as shirts as well. Seemed a little costly, but well worth it.
5
SOCORROV
They are a Christmas gift but the material is awesome.
5
JohnW
I purchased the thermal pant at a local Carhartt store, and the thermal shirt online. Both fit perfectly and provide good warmth under the Carhartt twill pants.
5
MicheleL
My husband now has one of these for everyday, they are comfortable and do a great job of keeping him warm as a base layer.
$159.99
My wife has had her knees replaced and these are working great to keep her warm. ... Bought the base layer bottoms for my granddaughter to stay warm and comfortable on cold, breezy days out on the golf course when the season begins in
5
Nmwalz
Perfect fit according to sizing guide! They warm up like the snap of your fingers! Definitely a great purchase!
5
Native Mainah
Great quality, quick shipping! My wife has had her knees replaced and these are working great to keep her warm.
5
Pam
Bought the base layer bottoms for my granddaughter to stay warm and comfortable on cold, breezy days out on the golf course when the season begins in February.
5
Sharon
So comfy and warm, made extremely well and well worth the money,
5
Pants work exactly as described, heats up fast and stays warm for a long time!
$63.97
WAS: $100.00*
fit fitted leggings inseam: 30 1/2 ” technology ua base™ 4. 0 locks in your body ’s heat to deliver extreme warmth even in the brutal cold moisture transport system wicks sweat and dries quickly ua scent control prevents the growth of odor causing microbes to keep you feeling fresh...
5
Jeff1540
If you play cold weather golf you really need to get the UA Cold Gear product. I like it because it ’s flexible and fairly warm.
5
Prof13
My Under Armour- UA Base 4. 0 XL fits perfectly. The waiste band is comfortable. The fabric is a great barrier to the damp cold air near Lake Michigan as I watch my son ’s Zion Benton High School ’s Varsity baseball games.
5
MattB13
Very warm. Different than the old waffle style. But they still work just the same.
5
Amazing pair of pants
I work outside. And theses pants are amazing.
5
Great material. Fits like a glove. Perfect for cold weather. True to size.
$49.99
Super Comfortable and very warm, these bottoms are a great base layer when it is cold. ... Great quality, superior warmth, and comfort. ... This material is soft and very
4
ClaireT
[ Not quite the perfect fit for my girlfriend, but she says they are very comfortable. We also like that they are machine washable, unlike most heavyweight layers with merino wool. And for the price( around 50% or less the cost of other heavyweight layers) you ca n't beat it!
$49.99
Lots of warmth without sacrificing mobility. ... FINALLY found long& warm enough bottoms! ... My long time struggle in looking for base layers is the length and fit around the curvy areas of my legs( calves, thighs and hips) and these have been the first pair I...
$34.99
regular fit built with force technology to wick sweat and fast drying rugged flex® moves with you fights odor strategically placed flatlock seams reduce chafing concealed thumb loop tagless
$51.97
WAS: $70.00*
fit fitted baselayer leggings inseam: 30 1/2 ” technology ua base™ 3. 0 all season baselayer is extremely versatile, providing midweight warmth and mobility to a variety of activity levels and cold temperatures moisture transport system wicks sweat and dries quickly ua scent...
5
Rickiuyv
I got a pair of this ones and i really like them specially to be worn under layers for extra cold days, good material and thin can be use with jeans.
5
Tawhid
This product has soft and comfortable fabric!
5
Proline1988
Whenever it's cold outside and I have to be out in the elements for extended periods I always wear UnderArmour products. Nithing words as good to help keep me warm. A bit pricey but we 'll worth the money.
5
Mf1969
Warm and comfortable sizing was good. Good on cold days for sure
5
Anne799
My son wears these under his uniform. He is so happy with the comfort and layering capabilities the material provides!
$72.97-$115.00
WAS: $115.00*
slim fit 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance fit updated to improve functionality while enhancing aesthetics for a range of body shapes back body seam wraps to front for body- enhancing fit crew neck with...
5
Mele
[ I bought this for a gift for my daughter who works outside in Oregon winters with the horses. She loves it- Warm and cozy and fits like a glove! great base layer! Smart wool has been my go to for years!
$115.00
They are soft and warm and a great addition to my wardrobe. ... Cozy and warm pants ... When I sleep the wool helps me keep warm but not sweaty. ... Super soft and
5
Mrsfry
[ I recently wore them under my jeans in Sweden and it was the perfect combo. I stayed the perfect temperature inside and outdoors while walking around in December. I would highly recommend.
5
Kpave
[ These fit so great! I ’ m plus sized and sometimes sizing can be wonky or vague but these are a dream. They are warm for sure but I can ’ t wait until The temperature dips to really put tgem to the test.
5
Maw maw Z
My legs will not be cold this winter. They are of good quality and very soft and warm.
4
Rmrst40
These base layers are awesome! Super comfortable and warm under snow gear or by themselves! If the price point wasn ’ t quite so steep I would live in these all winter long!
$49.99
I work in a freezer and these are very good at keeping my legs warm. ... He definitely feels warm in them! ... Keep me warm all winter long ... They ’ re still usable and so far they have been pretty warm this
5
Michael prez
Great product. just as described. fast shipping and fairly priced
5
JeannineR
These are great, its the second pair I have bought for my husband. He works in a freezer all night long and these are great and really help to keep him warm.
5
Madison L Green
Bought right before it started getting super cold and so glad I did!
5
Mscole12
Bought for husband…Good fit, comfortable fabric, decent price.
5
DennisR
These fit great and feel soft. Keep me warm all winter long
$159.99
It keeps me so warm and cozy and I couldn ’ t imagine life without it now. ... This top keeps me warm while trap shooting in the winter. ... At 12 below 0 it managed to keep me warm longer than I thought without having to wear a bunch of bulky...
5
Renee
You don ’ t realize how much you need a heated base layer until you have one! It ’s been such a benefit to various aspects of my life. I wear it beneath my layers when spending time outdoors during winter in Wisconsin. But I ’ ve also worn it to work( in an office) during especially cold days. It fits true to size and is comfy. Somehow it seems to trap heat inside yet it ’s also breathable, I don ’ t sweat in it like I have with other base layers.
5
The Base Layer Shirt takes the bite out of any cold day! And the battery last for hours! Washed it in a cold wash then hung it to dry, easy peesey! Definitely worth it!
5
I bought the base layer for my son who works at Disneyland in Anaheim Ca. and he loves it. Keeps hos 3X body warm when working nights. Great product
5
GLWS
Just wearing the shirt and not on has been enough to keep me warm. The few times I have used the heat, I set it on lthe lowest setting and was plenty warm.
5
Luke B
Definitely worth having extra battery banks if you ’ re skiing all day or anything like that, also could use an extra hole in the battery pouch so you can route the cable to a pant pocket more easily. Besides that, it definitely lasts through the wash and multiple winters
$72.97-$115.00
WAS: $115.00*
slim fit 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance fit updated to improve functionality while enhancing aesthetics shoulder panels eliminate top shoulder seams flatlock seam construction designed to minimize...
$52.97
WAS: $70.00*
fit fitted baselayer leggings inseam: 29 1/2 ” technology ua base™ 3. 0 all season baselayer is extremely versatile, providing midweight warmth and mobility to a variety of activity levels and cold temperatures moisture transport system wicks sweat and dries quickly ua scent...
5
Barn girl
I bought these for my niece in fargo north Dakota. It's- 45 degrees around chill this week. She says they are great for the cold weather where she does out side work in a barn.
5
vanheelj4
My daughter uses this for Nordic skiing. Lightweight and keeps her warm without limiting mobility.
5
Mrs Marcellini
truly a must have warmer if you are a skier or like to be in cold weather! I had used these for years and I am so happy with them!!! Just buy! true to size, I am usually a XS/small and got a small on these.
5
Dmjdavis
These keep you so warm and they are so comfy
5
Soccermom7406
Fit true to size. Nice material
$44.99
these tights give you the range of motion and warmth you need when battling the cold months. ... these women's thermal bottoms are made of midweight waffle knit polyester for easy- wearing warmth that wicks sweat and fights
See Price in Cart
WAS: $120.00*
as one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature- regulated as you enjoy high-...
$44.99
Keep Warm ... Keeps me warm in 30 degree weather with gusts, and matches the same style top baselayer well. ... Very comfortable and warm without being too bulky underneath a pair of
5
ThomasL
This base layer has been great in cold weather. They perform well enough that I do n't notice I am wearing them while working.
5
JamesY
They fit great and keep me nice and warm working outside in the wind all day.
5
Lando523
Wore these under snow pants in- 10 weather for ice fishing and they worked awesome. Definitely buying them again in the future!
5
Tanner2
These base layer bottoms are great for cold weather. Carhartt products never disappoint.
5
GolfmanNJK
I bought these so I may continue playing golf in the colder weather. I ’ m pleased with the results.
$19.99
Keeps my partner warm all day when he works outside in 30 and below weather ... My legs stayed warm even on rainy days. ... Kept me warm in the mountain. ... Kept me warm on a 3 hour winter
5
jman151
I bought this for a snowboarding trip in Colorado. Excellent product. Kept me warm in the mountain.
5
IslanderAC
Fits true to size. Does the job in maybe 50- 60⁰ weather to keep your legs warm.
5
Ebaker187
Kept me warm on a 3 hour winter hike! It was about 25- 30 degrees out too.
5
Michael 7
I bought these to wear on those cold days on the golf course. Excellent purchase. Works as designed.
5
AkScott
I took the Duofold pants with me on a three week visit to a cool place. I went out on hour and a half to two hour hikes in temps from 30 to 45 degrees. My legs stayed warm even on rainy days.
$72.97-$115.00
WAS: $115.00*
and their heaviest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away. ... slim fit 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance fit updated to improve...
5
Kwhendy
Bought these about a week ago and wear them nearly every day. I love how they keep me warm but do n't make me hot.
5
Mountain time
Fit great especially in length. Perfect weight to stay warm in cold weather.
5
tjflan2
Fit true and worked outstanding as base layer for football game. Very comfortable and breathable.
$33.97-$44.99
WAS: $44.99*
Let's talk about the claims It is absolutely easy to wear, and very warm but not to the extent that it is suffocating when you are working hard. ... Definitely recommend to anyone looking for warmth and
5
glasgirl65
Shirts are well made and comfortable. But I preferred the ones from the previous season. Not crazy about elastic thumb bands, they dig into thumb webbing on your hand. They were much more comfortable with the slash cuff thumb hole
5
Cupcake
[ I am 5 foot and have a lot of trouble finding regular small sizes( other than petite) that fit well in the length. This long sleeve is just right
5
MehganM
Love the deep purple, top base layer! It fit really well and was long enough despite my 5' 11 '' height. If you are a C cup or bigger, you might want to size up, but for anything smaller it should work. It's odd that this was long enough but the matching pants are not as I 'm very proportional. In any event, I 'm grateful to have this top and I love the feminine color! Thank you!
5
Katie
[ Bought one in wine and two in black. The wine fit perfectly but the two black ones were tight under the arm, so I returned them. Quality is terrific and it was well appreciated in the cold Montana winds last month.
5
Sesb2120
[ I purchased this shirt, and another in a different color, after having an earlier model. I ’ ve worn the shirts several times now and I ’ m very happy with them. I do think they run true to smallish in size so maybe order up a size.
$30.00
performance fit pants brushed interior fabric offers all- day comfort and warmth body contouring design for great shape tag- free design provides a fuss- free
$74.97
WAS: $100.00*
Could n't be happier with the warmth. ... I work in a meat room and it ’s very cold, I only have to wear my base 4 shirt and my work tshirt and I ’ m kept
5
Mom2025
Got this for my daughter, she is a teacher. Her room is cold and then she has bus duty periodically. So the 4. 0 is perfect for being somewhat sedentary. Surprisingly, actually keeps her warm! She is a chilly person normally, so cold temps are miserable for her. We 've tried many products. The Under Armour is work the investment!
5
KarenK11
I am always cold. This is the solution! Love it!
5
East Coaster
These are the best long underwear going. I mind the cold but not when wearing these.
5
Jea970
The fit is loose but not so lose that I would exchange for a smaller size. The shirt is warm but not too warm when inside. Outside it keeps me toasty at 30 degrees and I ’ m always complaining of being cold. All in all, I ’ m very happy with this purchase.
5
I recently purchased the Under Armour Base 4. 0 Crew, and it's exceeded expectations. This top delivers comfort, warmth, and performance.
$75.97-$120.00
WAS: $120.00*
slim fit top contour the body heavy base layer top and best base layers for cold weather made with interlock knit for enhanced comfort offset shoulder and side seams to increase comfort and minimize chafing side seams wrap to front for body- enhancing fit temperature regulated: helps keep you...
$89.97
WAS: $120.00*
Very good stretch and warmth ... Warm, comfortable, and looks great ... Warm, breathable and comfortable ... Comfortable and warm base layer.-- considering more colors for next
4
Skippy
[ I ’ m a big fan of smartwool and needed new tights. These fit great and are actually not too long on my legs. I ’ m only 4 ’ 11 ” so that is usually an issue. They also fit my wide calves well.
$97.97
WAS: $130.00*
Again, very well made and warm. ... I no longer have to wear multiple layers underneath a uniform to stay warm. ... This bottom is warm and fits nicely with just enough
5
Peter
[ The Smartwool Men ’s Intraknit Thermal Merino Base Layer performs as described. In addition, it is not at all itchy, yet warm and comfortable.
5
Pflan
[ Comfort, comfort, comfort and warmth. Fit perfectly. Nice and snug Now that I have a pair I won ’ t ever go without. Buying additional colors now.
5
Kimmer13
[ The base layers I bought were too thick so I sent them back and ordered another set. They notified me immediately my return had been received and the refund quickly followed. Great prices!
5
SeanT
[ Perfect fit and super soft! But these as a base layer and will be what I wear going forward. I also have two Smartwool tops that are amazing!
4
Zeejet
[ An excellent product with a compromise between the benefits/draw- back of PE and merino fabrics. My main criticism is the extremely high- cut waist that rides all the way up to the belly button. It should be about two inches shorter than it currently is. Fit( Men's Medium): Great in the legs but unusually high waist band. I 'm 5' 9 '', 165lb, 31 '' Waist, Climber's Build. Pros:+ Excellent wicking and drying times+ Warm+ Quality build Cons:- Unusual cut and fit at the waist- While already very soft to the touch, just a tad coarse compared to Icebreakers products.
$92.00
relaxed fit four way stretch for unlimited movement activated carbon enhances thermal regulation and odor blocking properties upf 30 protection moisture transfer fibers move moisture away from skin to keep you dry soft hand feel makes it easy to layer
5
Bevshaffer
[ Love this. I wore it under a ski jacket for snow skiing and it was super comfortable warm and fits great. I ’ m 5 ’ 2 ” and 140 pound and a medium fit great.
$41.00
fit& design plush- back waistband gusset eases movement and reduces seam bulk mtf moisture transfer fibers to keep skin dry spun polyester is slightly brushed for extra softness double layer traps air between layers for extra warmth flat seam construction for seam strength and...
$159.99
The warmth is good for me ... Love the warmth on my thighs and back. ... Really warm pair of pants and an awesome fit. ... Both base layers do exactly what you want them to do- keep you warm while letting you wear whatever...
5
Ashley
I bought these for my husband as his job requires him to be outside in cold temperatures and they were worth every dollar spent. I highly recommend everything this company has to offer 😊
5
Crystal
Worked great! Downside is, I can ’ t use normal base layers now.
5
Jay Maine
I purchased these for hunting. They worked great!!!
5
DandySandy
I like these but the heat is only in one area and I wish it covered more areas
5
Keith B
I have n't turned them on yet but the fit is perfect.
$64.95
fit and design interlock knit crew neck with set- in long sleeves flatlock seam construction designed to eliminate
5
Toasty
[ I bought these for my grandson for skiing and he likes to wear them like a sweater at times. What more do you want, warmth and some style. He loves them.
5
Nana
[ I purchased these for my grand daughters, to provide extra warmth without extra bulk, for our cold Michigan winters. They love sledding, playing in the snow and hiking with their mom, dad and brothers.
5
bethr524
[ I bought this Smartwool baselayer top because I really needed something that would wick the sweat away when I was exercising outdoors on those chilly days. This top does exactly what I want. It's soft and comfortable and keeps my core dry even when I sweat beneath other layers. It washes up easily and does n't retain odors. I 'm very happy with this item.
5
WI_Dad
[ Bought for our 5 year old daughter to use while skiing in UT. She is very picky about colors and general comfort but she loved this smart wool baselayer. So far has held up to washing as well. Will buy another when she outgrows this one.
$55.00
machine washable ... relaxed fit antimicrobial treatment to inhibit bacteria growth self covered elastic waistband anatomically designed shape with room to move moisture transfer fibers move moisture away from skin to keep you dry upf 30 protection soft, silky hand feel makes it easy to layer
$49.99
I am truly amazed at how well this bottom works to keep me warm. ... They were warm without being hot, did not bunch in the crotch, and I had on jeans over
5
VickieG
These thermals are nice and warm and the fit is perfect.
5
JayCee
I do n't like reviews that say `` love these '' or some such, since it tells me very little. So... I am 5' 2 and weigh 152 pounds. My inseam is usually 28 inches, no more than 29. I ordered the large and they were perfect in length, landing right at my ankles with a little sag for give in the knees, and for squatting. I have a bit of a straight waist that is short- the waist band is about a 2 inch band that did NOT roll over or down and did not bind so the waist was just right. Fit perfect in the hips, and I have a butt so they stretched without gapping or sagging down in the back. I washed them in warm water, rinsed in cold and hung them up to dry. Dried quickly. They were warm without being hot, did not bunch in the crotch, and I had on jeans over them. Worked outside on the farm and stayed cozy. Went back and bought two more pairs.
5
LilyB
`` Heavyweight '' is a little misleading. The fabric is very thin and see- through. On their own, they do n't feel very warm, but worn under jeans or other pants as intended, they function very well. I forget I 'm even wearing them under jeans, and they keep me very warm on cold mornings. A good comfortable base layer. Got the M and they fit great. I 'm usually a 6- 8 in pant size.
5
GrizzlyGirl
[ Love the way they hug my buns and keep them warm. Great material and quality, fit is correct and would recommend these for your buns too, especially in Alaska.
5
ZaylahH
I wear them with the leggings and they keep me warm outside
See Price in Cart
WAS: $79.95*
These things feel instantly warm from the moment you put them on. ... Comfortable and warm, I also wear them as sweet pants. ... They are super comfy and nice and
5
THOMASR
Fit well true to size, easy on and off. what ’s really nice is I can stop at a restaurant or grocery store on my way home after hunting and feel very comfortable in just them.
5
Doug
These are awesome! Surprisingly comfortable and perfect under waders.
5
JoelT
The best midlayer I own. They are super comfy and nice and warm. Only this I wish they had was a rear pocket for my wallet. I would definitely buy again!
5
SidE
25 out this morning water 56 and I am very warm with these under my waders!! So far very happy!!
5
HankI
Superb fit and comfortable. I like these because I can wear them all day fishing and still stop off afterward in them. They are well thought out.
See Price in Cart
WAS: $125.00*
relaxed fit made with four way stretch for unlimited movement moisture transfer fibers move moisture away from skin to keep you dry upf 30 protection clima- wool fabrics boast superb breathability and temperature regulation for a comfortable
$90.00
relaxed fit stretch performance soft, comfortable body conforming fit durable midweight warmth in cool to cold conditions moisture transfer fibers move moisture away from skin to keep you dry odor resistant soft hand feel makes it easy to layer
$140.00
WAS: $150.00*
inseam: 75. 6cm ... knit™ body mapping technology to regulate body temperature without sacrificing breathability ... contains zone ... gusset for mobility and comfort flatlock seams to prevent friction hugs your body for a snug and secure base layer
5
david d
The baselayer withstood the rigorous environment at Mount Kilimajaro and performed vey well.
5
Aeneas Dog
[ I wear every day at work! Really comfortable and warm!
$24.99
Keeps you warm ... He wears them every day and they keep him warm. ... I love them they are thin not heavy for laying a must buy brand if you want thicker and warmer thermal get the same brand in expedition version military fleeced
5
Lynn2025
I bought these for my son. He wears them every day and they keep him warm.
5
YOYO90
I love them they are thin not heavy for laying a must buy brand if you want thicker and warmer thermal get the same brand in expedition version military fleeced ok.
5
skiellen
Bought these for skiing to go under ski pants and worked well. Less expensive than most but did the trick. They do run large however. Large was huge!!! We ended up with a small for my son.
5
Socker mom1
Great product at a good price. We need to buy the shirt.
5
Tacomama
I bought these for my husband& he is very happy with the purchase
See Price in Cart
WAS: $120.00*
merino sport yarn provides durability and fast dry times of polyester ... slim fit to follow contours of the body 3d mapping results in near custom fit and movement freedom seamlessly knit mesh ventilation designed to keep you dry and comfortable size medium inseam: 21. 5
$19.99
outside layer: 70% polyester/ 30% merino wool ... pruf® technical fiber polyester with silvadur™ intelligent freshness ... inside layer: 100% cold ... comfort waistband rib cuffs front and back rise regular
5
Infa
Two days and then they got washed. They work great.
5
Lologyal29
I bought these for my husband. He needed new long John ’s, so I got him these. He normally wears a large, but I had to get a size smaller. He very happy with them especially since this cold snap we ’ re having is pretty bad.
5
Mike 8x6
Size up. Not bulky or heavy feeling. Keeps you warm. Have n't felt overheated. Good for single digit temps.
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