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Stay warm and comfortable this winter with our collection of cold weather underwear. Designed to provide optimal insulation and moisture-wicking properties, these essentials keep you cozy during outdoor adventures or chilly days indoors. Featuring soft, breathable fabrics and snug fits, our cold weather underwear ensures you stay protected from the elements without sacrificing comfort. Layer up with confidence and enjoy the perfect blend of warmth and flexibility, making every winter outing enjoyable. Embrace the cold with our reliable and stylish options tailored for your needs.
$19.99
WAS: $24.99*
This ColdPruf Basic Crew is the perfect addition for my morning walk on those cold Wisconsin Mornings. ... This is great for people who work outside keeping you warm and
5
Uhdr54
I purchased this also for my father and he just loves it.
5
nickname111111
i get cold easily. this helps. thank you very much
5
LALO4U
This is great for people who work outside keeping you warm and comfortable
5
Drello
These are the best thermal shirts to wear under layers or as the only layer. They have a great fit that keeps its shaps and does not shrink. Love it
5
Mark
I got this about a month ago to prepare for cooler days and it works great. Warm and comfortable.
$54.99
This is an awesome base layer pant for cold temps and winter weather very warming but not restrictive ... Excellent Base Layer for Cold Weather ... To me, they 're a great cold weather
5
cliftont
This is just an early review, I have not worn them for any length of time yet. They are not as heavy as the previous model, but are light weight and more flexible. Im not sure if they are as warm as the previous model. Pay close attention to the carhartt sizing chart. In the previous model, I wore a large, in these I were a medium. Im returning mine for the right size. And this time i 'll probably order the ones with the wool, assuming they are warmer.
5
Robert
Bought these to use as an alternative to fleece lined work pants. Much prefer these as it provides more flexibility, yet keeps you warm. They fit well and pair with my canvas work pants. I particularly like the idea that if the weather warms up enough, I can simply take them off, whereas with lined pants, you 're stuck unless you keep an additional pair of pants with you. These launder well too. The seams in them are placed well so there's no `` tugging '' or tightness. To me, they 're a great cold weather investment.
5
RonaldR
[ Really good and very warm comfortable insulated pants.
5
ToddS
Had the chance to trial these on a field test, very warm and durable. nice snug fit, plenty of room to flex and move. No need for extra layers with these, wore with Carhartt lined bibs and was very comfortable all day
5
DanielF
I received this set of base layer pants for a Carhartt Crew Filed Test to test its warmth, comfort, and durability in real world working conditions. This is by far the warmest and most comfortable set of base layer pants I have ever worn. I wore them over the winter in Colorado and Wyoming in cold weather, heavy snow, and strong winds. I was warm and comfortable no matter what Mother Nature threw at me. They wick away moisture and move with me all day. I would recommend this base layer for anyone who works outdoors in the winter.
$44.99
I bought these so I may continue playing golf in the colder weather. ... These base layer bottoms are great for cold weather. ... Wore these under snow pants in- 10 weather for ice fishing and they worked
5
Cynthia
[ My husband said he will never wear anything else since buying these he ’s in love with them!
5
JustinK
[ very nice product here. Keeps me warm in 30 degree weather with gusts, and matches the same style top baselayer well. Overall great buy.
5
EricG
Very comfortable and warm without being too bulky underneath a pair of jeans. Highly recommend!
5
LantzW
Easy to put on great fit and feel
5
Rico 51
I bought these a month ago and absolutely pleased with the quality going back to buy two more and they do keep you warm.
$54.99
They run warm, so on a cold day, they are perfect. ... I forget I 'm even wearing them under jeans, and they keep me very warm on cold mornings. ... I can honestly recommend this thermal bottom to anyone who gets cold in the
5
ChelseaR
Was absolutely impressed with these! So warm, yet light weight and breathe able. Nice fit and super comfortable!!
5
Mamie90
I am impressed with my Carhartt Poly- wool bottom. I received the thermal as part of a Carhartt Crew Field Test, but I will be ordering two more complete sets. I am truly amazed at how well this bottom works to keep me warm. One must understand, I am constantly cold, so to me, this is amazing. I am 5ft 3in, and weigh 115lbs, and the small works well for me. I have laundered it, with no ill effects. It has retained it's shape and fit very well. The bottom also fits perfectly under skinny jeans, without bunching or showing. I live in Iowa, and it gets cold here. While wearing this pair of thermal bottoms, I stayed warm. It really goes long way in cutting the harsh winds we get out here on the prairie. I can honestly recommend this thermal bottom to anyone who gets cold in the winter.
5
JulieB
I received as part of the Carhartt Crew Field Test. It is the perfect weight, feels very comfortable and keeps you warm. It has a bit of a stretch to it so it easy to move around in. Very good quality. You wo n't be disappointed.
5
ErinB
I received this item as part of the Carhartt Crew Field Test. The fabric is softer than I was expecting and the fit is pretty true to size. They are very warm as an under layer!
5
TeriC
[ These are a really cozy and warm bottom layer for Winter. They run warm, so on a cold day, they are perfect. The waistline band can become bunched from wear and washing so you may need to reposition it after a few washings. Otherwise, a fabulous warm bottom layer that has a soft wool fabric.
$22.97-$44.99
WAS: $44.99*
Quality is terrific and it was well appreciated in the cold Montana winds last month. ... The feel of this shirt is great the material is very
5
JenniferM
I received this thermal shirt as part of the carhartt crew field test and let me just say they are amazing. The fabric is soft and silky and they fit true to size. I wore them under my Jean's and tshirt to work and they kept me just the perfect warmth. I wear them about 3 times a week and wash them as well and they seem to be holding up great so thank you for a great product. Definitely recommend to anyone looking for warmth and comfort
5
Babyd
I received this thermal shirt to test from carheartt crew and I absolutely love it! It is very comfortable and fits perfectly. I love the moisturizer wicking fabric! It has hidden thumb loops to make it easy to put on your jacket. I would definitely recommend this thermal to family and friends.
5
AndreaJ
I received the Base Force Midweight Tech Crew Thermals as part of a Carhartt Crew field test and I'am so happy I did because I love these thermals! My favorite part is the thumb loopholes that keeps your thermal shirt in place when you layer over top of it with jackets or sweatshirts. The thermal is very comfortable and kept me dry at all times. It has sweat wicking& prevents odor. You can not go wrong with this thermal and I highly recommend it.
5
MELANIEW
I couldn ’ t be happier about being chosen to field test this set! As requested I wore these as much as possible( 3- 4 x a week)! These are honestly the best thermals I ’ ve ever worn!! Whom ever designed these thought of everything!! From the warm ultra soft moisture wicking fabric that keeps you dry and toasty, to the stay in place thumb holes in the top for comfort, you couldn ’ t ask for better thermals!!
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!
$115.00
Perfect weight to stay warm in cold weather. ... I love how they keep me warm but do n't make me hot. ... He said the fit was true to size and they kept him warm while snowmobiling and
5
tjflan2
Fit true and worked outstanding as base layer for football game. Very comfortable and breathable.
5
Mountain time
Fit great especially in length. Perfect weight to stay warm in cold weather.
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
srgmnh
These really are a step above. Great fabric, great warmth, hold their shape well. Worth every penny.
4
Jdub
Smart wool has always made quality products and these are no different. But… awfully pricey for a pair of long Johns!
$39.99
WAS: $44.99*
This is 30% merino wool, perfect for cold weather skiing, snowboarding. ... Excellent cold weather base layer ... I 've gone in extreme cold with this( cross country skiing at 0 and below 0 temps) and this type of layer is
5
Dad71
Have worn it twice- nice fit, very soft, nice base layer that keeps you warm
5
Jeff
Was exactly as advertised and is a very comfortable fit
5
Jack in Leesburg
Keeps me warm. Does its job. I ’ ll buy another one soon
5
Peter
Very warm and manages moisture transfer as advertised. Great baselayer.
5
BJ Butterball
Perfect fit! Great Value! Quality! Rewards! Location!
$19.99
Though I live in a warm climate and do n't need thermals much, they are great when they are needed. ... They are good quality, last longer than most, they are more comfortable and they do look
5
Tim From Pittsburgh
Quality is hard to find, Champion truly makes a quality product. I asked the Average consumer to try and rival this product, be a champion.
5
Ulyn
Bought 2, Husband very happy. Great price and very good fabric.
5
nonedear
I bought these for my husband. He 'd been wearing flannel pajamas under his pants, but these were so comfortable and so warm that he asked me to get more.
5
Sportspack
The Duofold® Originals Men's Thermal Pants are great! I will be ordering more soon!
5
Peregrin
Though I live in a warm climate and do n't need thermals much, they are great when they are needed. Had a pair for years that fit well, was comfortable to wear, could work outside in them. They wore out so I got another pair. They fit well and I expect good things from then.
$34.99
Thank you. ... Definitely would recommend this Carhartt base layer pant to my friends. ... Great product and great price. ... Happy with my Carhartt waffle base layer, bought the same thing maybe four years ago and loved them, and I still love
$65.00-$130.00
WAS: $130.00*
These are very warm and keep me toasty on those cold days. ... The material is very soft, has a great but comfortable fit. ... They ’ re tight but flexible and
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!
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
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.
4
Brenda
Fit is great. Very warm for Chicago winter runs, but a little bit itchy. Also I would like it to be thinner like the ones in the smartwool Tercel material. Sadly could not find those in mid rise online.
$115.00
This shirt is so soft and warm! ... She loves it- Warm and cozy and fits like a glove! ... Material is so soft. ... It provides enough warmth without being bulky. ... Warm and
5
Track Mom
Material is so soft. It is also thicker than most other brand wool base layer tops I have bought. Smartwool is a great brand.
5
Raka
Fits well, comfortable and a breathable but warm base layer.
5
Valentine56
This shirt is so soft and warm! As a senior citizen, I get cold easily. Wearing this shirt to sleep in keeps me comfortably cozy.
5
Jill
This is a great product. I purchased one for myself on- line for Christmas, based on the previous smart wool base layer bought in the store in October 2024. The only problem is that the shoplifting tag was still on the product when I opened it on Christmas Day 2025. How Annoying!!!!!! Now I have to return the product. How about some quality control? This was a very unsatisfying purchase.
5
LT70
I bought this shirt about a month ago because it was on clearance. I have already used it a few times while cross- country skiing and it is great. It provides enough warmth without being bulky. I am satisfied with my purchase.
$39.99-$41.99
These leggings worked great as `` long underwear '' when I need to be out in the cold. ... I bought these to wear under my jeans to an Eagles game and I was soooo
5
Figarohall
I bought these to wear under my jeans to an Eagles game and I was soooo warm.
5
Lynnann816
These leggings worked great as `` long underwear '' when I need to be out in the cold.
$115.00
Went skiing at altitude with this as my base layer and it kept me incredibly warm! ... It's a great color and it's comfortable. ... Perfect base layer! ... My husband loves
5
Just another white guy
Went skiing at altitude with this as my base layer and it kept me incredibly warm!
5
Enjoy
My husband loves it. It's a great color and it's comfortable.
$115.00
My legs will not be cold this winter. ... I got These for skiing and they were pretty warm and comfortable. ... It ’s a great base layer that I can depend on. ... They are warm for sure but I can ’ t wait
5
Maw maw Z
My legs will not be cold this winter. They are of good quality and very soft and warm.
5
Sydroo
Fits true to size. Keeps you warm! Relaxed fit and love the color. Makes snowboarding more enjoyable.
5
Mim1
Used these under sweats in below freezing temperatures in Quebec City sometimes needed snow pants too, other times just the two layers.
5
DreambornAnthology
Love Smartwool for days in the snow. It ’s a great base layer that I can depend on. It is super soft when you first buy it but does get scratchier with wash and wear, even with gentle cycles, mild detergent, and hang drying. I tend to wear a thin, cotton free layer underneath for better comfort and more layers. While it does offer some stretch, it is very true to size, so if you are teetering between sizes, size up. You ’ ll be more comfortable and won ’ t risk circulation compression, which will ultimately make you more cold.
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.
$24.99
Brought right before cold set in and boy am I glad I did! ... Very comfortable ... Great purchase& very comfortable. ... Staying Warm ... Kept me nice and toasty ... Already ordered
5
Lois1952
Brought right before cold set in and boy am I glad I did! Love it
5
Acost
So happy I bought this just in time to go skiing!!! Kept me nice and toasty
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!!
4
Robin
Great purchase& very comfortable................
$140.00
I typically get a size small for base layers, but love the medium for leggings to wear with oversized sweatshirts and sweaters. ... Super comfy, warm, durable( they still look like new after many washings), and the patterns add a fun
5
Andi
[ These are my everyday leggings for the winter season. Super comfy, warm, durable( they still look like new after many washings), and the patterns add a fun styling. I typically get a size small for base layers, but love the medium for leggings to wear with oversized sweatshirts and sweaters.
$29.99
Girlfriend says that they kept her warm on the colder days ... Helps keep me warm while I ’ m out coaching on the track. ... Very warm ... Good fit ... Good fit, good
5
Mike 8x6
Girlfriend says that they kept her warm on the colder days
5
Lynnann816
I bought these for outdoor wear, when I spend a lot of time in the cold.
5
Arnie
Bought these for an under layer for work and they ’ re great
5
Betty
Bought to replace a base layer of Winter silks. I really like them.
4
Filipe
Good fit, good price! Helps keep me warm while I ’ m out coaching on the track.
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