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Discover the perfect hiking base layer pants designed for ultimate comfort and performance on the trails. Crafted from moisture-wicking materials, these pants keep you dry and warm, making them ideal for any outdoor adventure. With a snug fit that allows for easy layering, they provide excellent insulation without sacrificing mobility. Choose from a variety of styles that offer breathability and durability, ensuring you stay comfortable during long hikes. Gear up for your next expedition with hiking base layer pants that support your every step.
$63.97-$85.00
WAS: $85.00*
a year- round favorite, the classic all- season merino base layer bottoms work hard to keep you comfortable everywhere, from the ski lifts to the
$14.97
WAS: $44.99*
I love the thickness, double layered. ... two- layer thermal for warmth in extremely cold weather flatlock seams to avoid irritation drawcord for custom
5
Jordan2121
Fits comfortably and can move well in them. Perfect for any activity.
5
ToastyWarm
The Champion Duofold Men's Varitherm Expedition long johns are the best! A little pricey compared to some others, but you get what you pay for. I love the thickness, double layered. They keep my family warm during Winter sports. These `` Expedition '' pants are enough to wear under your snow pants... no need for another layer of sweatpants, etc. This brand, style is the ONLY one I have purchased since I became aware of them... I believe that's been over two decades! Now, I 'm buying them for my grandchildren!
5
Bengi
Really comfortable and warm better than any others that I ’ ve worn
5
powerstroker57
Bought this for a Spartan race out in the cold rain and kept me warm! Highly recommend! Super comfortable too!
5
Mr B
Great product**
$72.97-$115.00
WAS: $115.00*
These leggings are my go- to ski base layer and have been for some years. ... Great Base Layer ... Always a great layer from Smartwool ... Amazing for skiing, alpine or
5
posie
[ Very impressed by Smartwool after hearing from a friend. this baselayer is super lightweight and warm. good for running as it is or layering under a waterproof pair of pants for frigid weather to hike
5
Sdwvt
[ I now own two pairs of these bottoms. I sized up to a medium. I wear them under my snowboard shell pants. I stay warm and they do not bunch. They are versatile. I can wear them around the house and out for walks. I love them.
5
Toasty
[ Driving around all day when it ’s cold out delivering mail and packages to the door, they help keep me warm and moving along. Oh come on, thanks for everything.
5
Lydn
[ The perfect merino base layer and lounging bottoms. Not itchy at all but soft, comfortable and stretchy. I 'm 5' 1, 108 lbs and the S fits well, not skin tight.
5
Prp74
[ I bought this wear at night during a backpacking trip. Worked perfectly when the temperature dipped to 30. More comfortable than the smart wool 150 baselayer.
$51.97
WAS: $70.00*
He was looking for something new to layer his hunting gear with and these were perfect! ... Great gear to keep warm ... Excellent warm up leggings if you are working outside in the cold
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!
$115.00
I have been waiting for these for my entire life and I ca n't wait to go through this next ski season with a pair of base layer pants that actually fit me so I do n't have to worry about being uncomfortable or cold and I can focus on having fun with my friends and family
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!
$120.00
fit and design well- fitting tights in moisture- wicking stretch material premium double- knitted stretch fabric perfect for easy hikes and everyday outdoor life comfortable, high waistband that gives secure and “ hugged ” feel secure leg pockets with envelope closures 7/8- length...
5
Jo W
Really pleased with my purchase. Fit is perfect and really comfortable.
5
Sandra P.
Hike, run, great fit! Happy with them. I am usually wear a medium but with this model maybe Large.
5
Kasi M.
These are great hiking and every day tights! Based on another review, I thought they 'd be softer. But make no mistake, these are technical feeling tights... like running tight material. Definitely not a bad thing, just not what I was expecting. Regardless, they 're amazing tights and fit like a glove.
5
RMFAM
[ These leggings were purchased as a go anywhere do anything legging and have certainly lived up to that expectation. I am very impressed with the quality and durability of the material, the seams are tight and executed very well. I would recommend these to anyone looking for a legging that is a cut above in all ways. They are built for adventure and yet are still very comfortable and enjoyable to wear.
5
Finch
[ The tights that were made for hiking, riding and all else. Great fit, nice stretch and perfect weight. I am not the pocket lover would like to have option to not have, but if you but these you will enjoy.
$72.97-$115.00
WAS: $115.00*
Solid base layer ... awesome base layer ... I love the base layer line of Smartwool. ... love the thin layer and wool is not itchy ... My son loves wearing thermal bottoms for
5
Wesley on the Rocks
[ I highly recommend these for all of your snow adventures. I wear mine directly under my snow pants and they work perfectly for warmth and movement. This base layer helped me survive snowboarding in both Colorado and Canada. Buy a pair, its worth every penny!
5
Jordan
[ I ’ ve worn this pair of wool pants as a base layer a couple of times in the snow and stayed warm. They fit and feel great! I definitely recommend!
5
Joe1
[ Bought two pairs of these for a snow trip. Great feel and regulated temp perfect. Alternated the pairs and neither smelled after solid week+ of use.
5
Littlemisstexas
[ Purchased this for someone. They gave a thumbs up. I personally own a pair of women ’s smart wool. Money well spent. They last a long time, and they ’ re as comfortable as it gets.
5
Chris K
[ I bought this base layer bottom for a ski trip to Colorado. This did a great job keeping me warm in the cold mornings and wicking sweat away in the warmer afternoons.
$44.99
I bought these so I may continue playing golf in the colder weather. ... Keep Warm ... Wore these under snow pants in- 10 weather for ice fishing and they worked
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
Kept me warm on a 3 hour winter hike! ... these two- layer thermal bottoms provide warmth in cold conditions and make a great first layer when you really need to bundle
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.
$39.99-$41.99
silvadur™ intelligent freshness controls odors and bacteria growth, and the flat seams ensure irritation- free wear. ... the brushed interior offers next- to- skin warmth and the single layer engineering ensures quick- drying
5
Figarohall
I bought these to wear under my jeans to an Eagles game and I was soooo warm.
$97.97
WAS: $130.00*
Again, very well made and warm. ... Inside and outdoors, it's a great layer to be wearing. ... I no longer have to wear multiple layers underneath a uniform to stay
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.
$90.00
slim fit base layer bottom constructed with lightweight merino jersey fabric with a recycled nylon core for increased durability features merrow stretch stitching designed to elevate comfort, range of motion, and fit merino- lined elastic waistband for maximum comfort 31 ”
5
ErinH
[ These worked great for skiing in single digit to mid- 20 ’s temps. They ’ re comfortable, not scratchy, warm but breathable. Will definitely buy more.
5
Wasloki
[ Bought for my wife for an upcoming trip to the Arctic. She loves them. She says they are soft and not itchy. Like they don ’ t require to much special treatment in the wash and don ’ t shrink
$90.00
Fits very well, nice construction, comfortable, a quality base layer. ... My husband likes his base layer bottom. ... beautiful color; soft so comfortable
$34.99
a good base layer is always important; cold ... They are very warm and very reasonably priced! ... pruf® men ’s expedition pant is ideal for keeping warm in extreme
5
Happy and I know it
5
Outdoor manly
Bought these on a whim to try out for working in the cold weather. I use them as a base Layer. They are very warm and very reasonably priced!
$49.99
A good comfortable base layer. ... fitted base layer bottoms constructed with temperature- regulating wool- poly blend to help you stay warm strategic seam placement to reduce chafing smooth flatlock seams, y- split waistband, and contoured front for comfort fights...
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: $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
$110.00
They are very comfortable and made with excellent quality. ... Nice fit and feel ... Excellent buy. ... My wife loves the fit and feel. ... stitched on adidas terrex woven branding made with natural and renewable materials as part of our journey to design out finite resources and help end plastic...
$89.97
WAS: $120.00*
The way it stretches over my knees and hips is really impressive and comfortable. ... Very good stretch and warmth ... In general my favorite long underwear especially for skiing and does n't get weird stretchy like the classic smartwool longjohns which is
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.
$24.97
WAS: $39.99*
Bought these to go under my golf pants, and kept me warm and didn ’ t restrict me at all ... Keeps the warmth in and is comfortable to wear even under dress
5
jaywik
great fit- actually works- kept me warm- I did n't even know i was wearing them
5
Jon1818
Bought these to go under my golf pants, and kept me warm and didn ’ t restrict me at all
5
Pops123
I bought these for my snow boarding son. He likes them even better than a much more expensive brand name pair he owns.
5
Lanz58
Keeps the warmth in and is comfortable to wear even under dress pants.
$110.00
These pants are very flattering with the high waist and are comfortable and warm. ... Great base layer for pairing with ski boots. ... These have a great amount of stretch and cute colors, keep me
5
Jacketquestion
[ I was skeptical after reading reviews but I really like these tights. The waist is high and seamless and very comfortable. Also doesn ’ t dig in creating muffin top stretchy and warm. Looks great under skirts for winter. Totally recommend. Feels lighter than the coordinating tops. True to size.
5
JLKNH
[ Good fit, snug but very moveable, slightly more so than Intraknit 200, although both are awesome. Pair with waterproof( maybe) lightly lined pant for full winter warmth without the bulk. Love the fun pattern to make life more interesting. Highly recommend!
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
$97.97
WAS: $130.00*
Love this base layer pant to compliment the top. ... Super lightweight base layer that keeps me warm while snow camping and treking. ... Very snug and form fitting which is what I wanted for a ski base
5
abeck
[ I received these as a Christmas gift. I love them under my bibs for snowboarding! They ’ re tight but flexible and comfortable. They keep me warm on the mountain.
5
shellydk
[ I could go on and on about this whole line from Smartwool. It's their best thing in a very long time and I 've been a fan for years. The material is very soft, has a great but comfortable fit. These bottoms also have a nice wide and sturdy waste band so there is no bunching or other uncomfortable nonsense in that area. These are very warm, so perfect under a shell pant or bib for alpine skiing, but I do n't think I would wear them on a tour.
5
Hmae
[ Love the style. These are very warm and keep me toasty on those cold days. Would recommend to anyone looking for a quality under layers... very cute!
$140.00
WAS: $150.00*
gusset for mobility and comfort flatlock seams to prevent friction hugs your body for a snug and secure base layer fit ... inseam: 75. 6cm ... knit™ body mapping technology to regulate body temperature without sacrificing
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!
$49.99
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 genuinely enjoy wearing and also keep me very
$24.99
these base layer pants are designed with a cotton/poly blend and two- layer engineering to keep you comfortable and provide warmth when you need it
$9.97
WAS: $24.99*
My son uses them as a base layer for skiing. ... Best base layer ... varitherm base layer lightweight, second skin feel champion vapor technology with x- temp™ moisture wicking quick drying ultra soft brushed back fabric close- to- the- body flexes...
5
soKate120mm
I already own many Duofold items and getting the leggings was a no brainer. I like the excellent quality and the warmth it provides. The fabric is very stretchy without being too constricting. It has a fly for those who use it. The fit is perfect.
5
DeniseLG307
Bought this for my husband who works outside, he said they are comfortable and keep him warm
5
Nita22
Bought them for grandson, perfect fit& durable.. he loves them!!!!
5
YA7E
honestly very skeptical at first, especially considering the price but these are one of the most comfortable pair of pants i own, they definitely regulate temperature
5
rubdog5
A must when going snowboarding. My legs were very warm and comfortable to wear
$49.99
I work in a freezer and these are very good at keeping my legs warm. ... He definitely feels warm in them! ... These fit great and feel soft. ... Very comfortable but a little tight around the
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
$52.97
WAS: $70.00*
Easy to put on it ’s a base layer that you can wear as long johns under your clothes love ❤️ love love them ... These Under Armor base layer pants are
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
5. 4- ounce, 100% polyester low mini- grid midweight, carhartt force® base layer built with force fast ... these tights give you the range of motion and warmth you need when battling the cold
$420.00
regular fit pants full- length side zippers and snap- closure elastic cuffs for easy layering and on- off elastic waist with drawcord and two- way zippered fly provide access and a comfortable fit seat, knee, and cuff overlays for added protection from weather and abrasion sized...
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