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Stay warm and cozy with our collection of the best thermal shirts designed for ultimate comfort and insulation. Crafted from soft, breathable materials, these shirts provide excellent moisture-wicking properties to keep you dry during chilly days. Perfect for layering or wearing on their own, our thermal shirts offer a snug fit that retains heat without sacrificing style. Whether you're heading outdoors or lounging at home, these versatile essentials are a must-have for your cold-weather wardrobe. Embrace warmth and comfort with our top-rated thermal options.
$55.00
This shirt is great for wearing as a base layer or on its own. ... I bought this as an undershirt for my son to wear under his uniform and it kept him plenty
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!
$35.97
WAS: $100.00*
I wear these for while working outside, and they do a great job of keeping me warm while I ’ m doing light work. ... I was amazed how warm and comfortable this
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!
$62.00
This shirt is made with such a nice soft material! ... Love the feel of the fabric. ... Comfy ... Soft and warm ... Material is super soft. ... This shirt is true to size and
5
MemaJo
Will not likely wear before the fall season, but it seems perfect for skiing- light fabric for packing, but plenty of thermal warmth. The color was lovely too- subtle rose!![ for layering... sleeves were not super long, so not need to stuff under your jacket.] Would also come in handy alone for fall golf! Also a great name for teens- I got one for my 16 yo granddaughter as well.
5
CowboysforGolf
I purchased this for my wife and she loved the quality and how the material feels.
5
KSC41
I have bought several of these and wore them all winter and even on my trip to Europe and Switzerland and daily on the farm. They are warm and cozy and very comfortable to layer.
5
Stephhr71
Very soft and comfortable. Fits true to size. Recommend for those chilly mornings for your workout.
5
Farmgirl56
I purchased this for myself with a Christmas gift card. I love the fit and the weight( medium)
$130.00
slim fit is intended to follow the contours of the body crewneck long sleeves engineered construction uses knit structures to enhance performance with lighter weights and cleaner finish 3d mapping results in near custom fit and freedom of movement while ribbed elbows provide added
$85.00
stay warm on those chilly morning runs in this top. ... nike therma- fit technology helps manage your body ’s natural heat to help keep you warm in cold- weather conditions thumbholes let you extend your coverage and help hold the sleeves in place while you move collar stretches to add face...
$49.99
mizuno drylite® moisture management: using a dual filament yarn construction to transport excess moisture away from the body to create a comfortable and dry body microclimate for
$159.99
The best thing ever. ... Quick delivery, charges great, and heats up quickly. ... He was very impressed with the smaller flat battery. ... It keeps me so warm and cozy and I couldn ’ t imagine life without it
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
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WAS: $115.00*
add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or
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!
$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 design provides a fuss- free wear...
$180.00
when you 're in our best base layers, you 're ready for anything. ... insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high- intensity activities seamlessly knit mesh ventilation 3d mapping results in near custom fit and...
$50.00
normal fit, nice bright aqua color, very comfortable! ... Bought this shirt about 3 week ago very comfortable soft fit really well ... Great fit, light weight, warm&
5
Lakasto
I love my new top. It is warm and easy to wear when I work out.
5
Bumblebea
I bought this a few weeks ago and the material is really soft and keeps your warm! Love the colors, I got green
5
JSSQFoley
this crew is amazing- comfy, warm, the material just melts on you. fits boxy which i like. def recommend it.
5
KMG411
Thin warm base layer. Great for outdoor training in the winter
5
Ne ce
I bought this a month ago and it ’s a great shirt very soft
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WAS: $115.00*
add one of smartwool's best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or
$41.00
this kids' thermal top is also knitted with mtf soft spun polyester fibers that transport moisture away from the skin to keep you warm, dry and
$44.99
Best Thermals I have ever worn! ... These are honestly the best thermals I ’ ve ever worn!! ... Best thermals you ’ ve ever worn!! ... I received the Base Force Midweight Tech Crew Thermals as part of a Carhartt Crew field test 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.
$14.97
WAS: $44.99*
two- layer thermal for warmth in extremely cold weather flatlock seams to avoid irritation drop tail protection against the cold ... Great all around first level of protection against your
5
ToastyWarm
I have been buying the `` Varitherm Expedition '' long johns for decades. I became aware of them when my children were young, while comparing Dick's in store selection quality. They are so warm for winter sports.( I even enjoy wearing them as pjs.) I just purchased multiple sets for Christmas for my adult sons( all their wives confiscated their sets) and even my first grandchild! They all love the `` Expedition ''!
5
SM72
I bought this for my boyfriend the night of the freezing weather( Houston we are babies about that) and he had to work outside all night in it. He said it was was warm and not to bulky.
5
Jimmyp
Great fit! Summer now, so wo n't use it for a while, but seems like a really nice base layer.
5
Chow
Could not believe how soft, warm and comfortable the Baselayer crew was. Tried one bought five.
5
R A C in Rapid
Fits great. Great all around first level of protection against your skin.
$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:...
$130.00
insulation, articulation and ventilation are seamlessly integrated to amplify movement and comfort during high- intensity activities ... slim fit merino sport yarn combines the power of merino with the durability and fast dry times of polyester seamlessly knit mesh ventilation designed to keep you...
$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.
$60.97-$120.00
WAS: $120.00*
The softness and temperature regulation make this my favorite baselayer. ... I am so glad that SmartWool has decided to offer plus- size clothing for women and I hope they expand with even more
$25.97-$45.00
WAS: $45.00*
designed with a relaxed silhouette and finished with subtle naturals embroidery at the chest — a staple for post- surf mornings and coastal cooldowns. ... relaxed fit men ’s shirt long sleeves thermal fabric is breathable and naturally regulates your temperature naturals embroidery at chest...
$39.99-$41.99
silvadur™ intelligent freshness controls odors and bacteria growth, and the top wicks away moisture to keep you dry and focused. ... the raglan sleeves offer full mobility and the drop tail hem adds coverage at the back so you can move with
5
Figarohall
I wore this to the Eagles playoff game and I was very warm and comfortable
5
Bthehostess
My daughter is really picky with fabrics that touch her skin. We needed compression shirts to wear under her soccer jersey this winter. She absolutely loves these compression shirts. A little pricey but def worth it. We will be purchasing a few more for her.
$105.00
regular fit comfort active stretch seam construction seams set away from shoulder for added support zip through collar with interior wind flap for ultimate warmth moisture transfer fibers to wick away moisture from your skin thumbholes in sleeves to help keep sleeves in place 4- way stretch for...
$100.00
machine wash ... knit™- engineered body mapped technology? to regulate your body temperature and? let your skin breathe during high- intensity activity cool- lite™- a lightweight and breathable fabric blend raglan sleeve construction for mobility gusseted underarms for mobility and comfort thumb...
5
Mark
[ I am getting synthetic products out of my wardrobe and I have become addicted to Icebreaker long sleeve layering shirts. They are extremely comfortable, come in a variety of nice colors and weights, so are quickly replaced my synthetic top layers.
5
The Greek
[ This is one of two or three of the most amazing clothes I have. Technically it's a base layer but it's something I wear almost anywhere with the right pants and shoes. It's wool, but it's incredibly soft and comfortable. It works great as a base layer, but it's versatile.
5
Fredrick
[ This color is perfect, very beautiful and should be used again and again. Ideal light weight garment for fitness. Very breathable.
$115.00
# Sweepstakes After having their all season or originally 150 merino clothing, this thermal merino is perfect for those cold morning runs. ... The best. ... This shirt was so soft and
5
Patches
[ Needed a thicker base layer for skiing on those colder days. Perfect addition.
5
Captain Jimmy
[ This base layer is really comfortable. It is warm and does not restrict movement. I wish I had found this earlier. Fit is true to size. I 'm not sure why anyone would not be happy with this- buy it!
5
Jbear
[ Merino is THE stuff for active comfort in the cold. The key is staying dry between rain, snow, and sweat... it's challenging. 100%( 95 and 88 also good) merino helps to achieve this goal. It's warm when you need it to be and water( all types) evaporates quickly to keep you from getting chilled from damp clothing. It's got to be part of a system though, and you have to use that system properly or you will get damp and cold. We just came back from five nights in our tent@ an avg. of 26F at night. After hiking all day in these and then, putting on fresh Smartwool tops and bottoms we were warm all night( we could have stayed in the same set if we had to). Medium weight is probably fine for most applications, but do be sure you 've got the right system for the conditions. In summer and spring it's less critical, but in winter( THE best time IMO)... having the wrong gear can make for a miserable experience... and a dangerous one. Smartwool has the added benefit of being able to go in the dryer at home... not all merino products can. That's my take.
5
JKNOR
[ When it comes to staying warm during the winter, base layers are KEY! My old Smartwool long- sleeve lasted me years of use. Loved my first one so much that when it came to finally replace it, it was a no brainer. Kept me comfortable and warm during winter months of New Zealand, Japan, all the way to the summit of Mauna Kea. I 've never had a base layer fit so good right off the shelf. Felt like it I was putting on my favorite tshit. Could n't recommend it more
5
Sheri
[ My son loved the wool sweater I bought him for Christmas. It was soft and warm at same time. Mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
$75.00
upf 30 sun protection moisture transfer fibers move moisture away from skin to keep you dry activated carbon enhances thermal regulation and odor blocking
$45.00
220 gsm thermal fabric 70% cotton/ 26% polyester/ 4% spandex ... back shoulder jersey yoke overlay front jersey pocket with button one and only clip label back neck woven
$75.00
moisture transfer fibers move moisture away from the skin to keep you dry and comfortable built- in 4- way stretch allows for full range of movement in every direction activated carbon enhances thermal regulation and odor blocking properties upf 30 protection blocks the sun ’s...
$130.00
slim fit to follow contours of the body made with merino sport yarn: combines durability and fast dry times of polyester seamlessly knit mesh ventilation designed to keep you dry and comfortable 3d mapping provides maximum mobility ribbed elbows provide added durability mesh zones for better...
5
LPaul
[ I was looking for wool thermal layer for my husband, who runs cold. Rather than settling on a bland look, I chose this colorblock version for its added style. While he does n't fill it out quite as nicely as the model(!), he looks great in it.
5
rahoran53
[ I bought the Smartwool to keep me warm and comfortable on a 12 day trek in Nepal. The performance was outstanding and, as advertised, it was very breathable to keep me warm and even cool in the afternoons. It has a very comfortable feel and looks great as well.
$130.00
merino sport yarn combines the power of merino with the durability and fast dry times of polyester mesh ventilation seamlessly knit in gender- specific zones designed to keep the body dry and
$31.97
WAS: $49.99*
Very durable as I wear it for three seasons. ... I bought this shirt to keep me warm while I go outside for walks in the winter as well as wear it to work( our AC at work is always going, even when it ’s cold
5
Babygirl21
I went and bought 3 more. These are so comfortable. Keeps my body temp normal in all weather conditions. Living in MN and hiking the North Shore quite often this shirt does the trick! I got them on clearance so not sure what full price was.
5
Lamb153
I bought this shirt before I went to Germany for Christmas. It was a great layer to keep me warm!
5
SHEL11
I 'm planning ahead for the many winter months ahead. Could n't pass up this great shirt for the price! Fit and style are perfect.
5
Bogeyman hacker
Wife likes it for winter golf. Says it ’s comfortable and warm
5
Gtarowsky
I bought this shirt to keep me warm while I go outside for walks in the winter as well as wear it to work( our AC at work is always going, even when it ’s cold outside)
$24.99
Very comfortable ... Great purchase& very comfortable. ... Staying Warm ... no tag and flat seams provide itch and chafe free wear, while the cotton- blend ensures all- day
5
dutty
Going to the COLD country. Bought this to use as an underlayer. LOVE the feel and the way it fits. Already ordered more!!
5
Acost
So happy I bought this just in time to go skiing!!! Kept me nice and toasty
5
Lois1952
Brought right before cold set in and boy am I glad I did! Love it
4
Nibor
Great purchase& very comfortable................
$11.97
WAS: $19.99*
Very comfortable and soft. ... The fit is perfect, it ’s warm and soft. ... Great thermals this my 3rd pair and they soft and keep you warm when needed ... nice midweight fabric, tight
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WAS: $54.00*
a classic regular fit silhouette combines with understated chest embroidery for an effortlessly stylish look. ... its heavy waffle knit thermal fabric blends 60% cotton and 40% polyester for ultimate comfort and a yarn dye print that
$130.00
The garment care is oh so easy. ... Perfect Top for Layering orWearing Alone ... The styling is also extremely flattering. ... I love the length of the body and the
5
Camper at heart
[ The black cherry color is very flattering. I ordered based on true body measurements and the size chart resulting in a perfect fit. The styling is also extremely flattering. The neck is not too tight and not too loose. I love the length of the body and the sleeves. The garment care is oh so easy.
$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...
$120.00
women ’s regular fit themal interlock knit fabric set in sleeves thermoregulation and
$32.97-$130.00
WAS: $130.00*
odor resistance ... men ’s relaxed fit top interlock knit fabric breathability and thermoregulation drop shoulder
See Price in Cart
WAS: $140.00*
our most advanced performance base layer is 3d- knit to provide a tailored fit with mesh ventilation to balance warmth and breathability ... insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort merino sport yarn helps combine the moisture management,...
$120.00-$145.00
we 've updated the fit of our men's classic thermal merino base layer 1/4 zip to improve functionality while also enhancing aesthetics. ... size medium center- front zipper: 10 '' ''( 25 cm) machine wash warm gentle cycle wash with like colors do not bleach tumble dry low cool iron as needed do not...
$180.00
insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high- intensity activities seamlessly knit mesh ventilation 3d mapping results in near custom fit and freedom of movement helmet- compatible hood and extended collar thumbholes at cuffs...
$140.00
new to our innovative intraknit™ line is the men's intraknit™ thermal merino base layer 1/4 zip. ... insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort: temp rating of less than 25 degrees seamlessly knit mesh ventilation 3d mapping results in near...
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