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Stay warm and stylish this winter with our collection of thermal leggings. Designed for ultimate comfort, these leggings feature insulating materials that trap heat while remaining breathable for all-day wear. Perfect for layering under your favorite outfits or wearing solo, they offer a snug fit that moves with you. Whether you're hitting the slopes or lounging at home, our thermal leggings provide the perfect blend of functionality and fashion. Embrace the cold with confidence and enjoy the cozy warmth of our winter-ready leggings.
$65.00-$130.00
WAS: $130.00*
Love it, it is light but warm I wear them all winter long ... Love this base layer pant to compliment the top. ... They 're very comfortable and keep me warm enough to enjoy the slopes for
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!
$55.00
Just bought these and they ’ re so comfy and soft!! ... Could n't be happier with these leggings. ... Great fit& so very comfortable to wear. ... They fit snuggly and do not fold over at the
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.
$52.97
WAS: $70.00*
This product is so comfortable. ... Easy to put on it ’s a base layer that you can wear as long johns under your clothes love ❤️ love love them ... Got them for xmas and just used them so comfortable and
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
$56.23
WAS: $100.00*
These were perfect for a early winter trip to CO! ... Love them, extreme warmth, so much warmer than base 3, I like the looser fit in the legging ... These are amazing to keep me
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!
$49.00
WAS: $98.00*
dry® technology helps the fabric to dry quickly so you stay comfortable pulls moisture away from the skin and boasts a rapid evaporation time so you stay dry, cool, and comfortable inhibits odor and lasts wear after wear so you stay fresh fabric that breathes with you upf 50+ rated according to...
$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.
$60.00
I love that the design is made with a higher waist. ... These are perfect- warmer but not too warm, well insulated and VERY comfortable. ... My daughter love these for football as they are stretchy and help you keep
5
MN05
Love these leggings, bought them for myself and as a gift.
5
Rachele12
Great fit, nice quality. Yes they are a little pricey but worth the money
5
Nekita
The fabric is soft, stretchy, and moisture- wicking, so even during intense workouts, they remain comfortable and dry. The 7/8 length hits right above the ankle, which works well for a variety of heights. They also stay in place—no slipping or rolling down at the waist, which is a big plus. The only minor downside is that they run slightly small, so sizing up might be a good idea for a more comfortable fit. Additionally, while they are warm, they aren ’ t overly thick, so in extremely cold weather, you may need another layer. Overall, these leggings are stylish, functional, and ideal for chilly workouts or casual wear. Highly recommend for those looking for warmth without bulk!
5
Nikki g
I bought 3 pair I love them so much!! Great fit and comfy
5
PinkKris109
Love these leggings so much I bought two in black and going back for grey.
$80.00
that's why, we built these baselayer leggings—to keep you warm and dry without being bulky or riding up, so you can stay focused all season long. ... compression: ultra- tight, second- skin fit inseam: 29 '' sport activity recommendation: training, sports, skiing, snowboarding& other cold weather...
$159.99
Now I ca n't image winters without them! ... 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!
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WAS: $65.00*
bring on the cold. ... high- waisted high- stretch fabric heat- regulating back pocket fits most phones wide constructed waistband gives you a secure fit reflective swoosh logo on
$44.99
these women's thermal bottoms are made of midweight waffle knit polyester for easy- wearing warmth that wicks sweat and fights odor. ... these tights give you the range of motion and warmth you need when battling the cold
$115.00
nike therma- fit adv technology combines heat- regulating fabric with advanced features to help keep you warm in cold- weather conditions ... these heat- regulating swift leggings are made with incredibly soft fabric and have reflective details to add a pop to your
$95.00-$130.00
I received a size medium, which fit snuggly, but if I was going to order them again I would size up to a large. ... They are super cozy and kept me warm all day
5
Chris
[ Bought the set for my girlfriend and she absolutely loves it. She loves the fit and wants another set
5
emski
Very comfortable! Perfect for skiing& broadly wearing outdoors to stay cozy.
5
K Nicholson
This set is overall one of the best winter base layer fits I ’ ve had the chance to try out in the elements( as of yet). The fleecy layer inside isn ’ t too thick, so it will keep you decently warm while not feeling overly constricting( it won ’ t ruin or take away from your outfit either). If I was to give constructive feedback on anything, it would be that they are a little short in length( mind you, I ’ m 5 ’ 11 ”). So, I ’ m really not picky about that kind of thing( for leggings in particular). Especially as they do have a bit of stretch. I would say that they are relatively true to size, maybe size down if you ’ re on the more petite side of the spectrum.
5
Lauren
Amazing fit and keeps your warm as a base layer for skiing!
5
Beans
These are warm, comfy and fit nicely on the waist.
$115.00
Fit is perfect; extremely comfortable; keep me so warm in the winter! ... Amazing for skiing, alpine or backcountry ... Very comfortable and warm! ... Can wear all day
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.
$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
$89.97
WAS: $120.00*
Great for winter sports! ... 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...
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.
$75.00
reflective details and side pockets for storing essentials add functional details that optimize your run. ... sleek, performance fabric has built- in stretch that moves with you through every
4
mlaw
I needed another pair of running pants. These are comfortable but run small. I can move in them well but I got a medium and maybe a large would have been better. I am 5' 2 '' and 145 lbs. I lift a lot so I have curves and as I said they fit well but snug.
$120.00
push yourself on cold days with the right balance of support, comfort and warmth with the nike go leggings. ... with therma- fit tech that helps manage your body's natural heat and multiple pockets that let you carry everything you could need, you 'll feel set to go whether you 're hitting the...
5
NAELO
These Nike Women's Go Therma- FIT Firm- Support High- Waisted 7/8 Leggings are a game- changer! The firm support keeps everything in place, making them perfect for high- intensity workouts or just feeling extra secure throughout the day. The Therma- FIT fabric keeps me warm without overheating, and the high- waisted design is super flattering and stays put—no constant adjusting! I also love the sleek, sculpting fit that hugs in all the right places without feeling restrictive. Whether I 'm hitting the gym, going for a run, or just running errands, these leggings are my new go- to. Worth every penny! Highly recommend! 🔥💪
5
Liliana313034481
They are nice and warm, in general the therma version of these leggings run a bit big, I would size down if u want to keep the compression feel
4
Chloe
Lovely comfortable legging, really nice material. Did size up as they felt like they were pulling back down. Not for running either as you have to keep pulling back up.
4
Orsolya726158456
Very nice fabrick, soft, good quality. It is not too warm though. I wanted a thermo solution for nordic walking in cold weather under my pants. Its not bad, keeps warmth to a certain level but def not enough to a sub zero celsius
4
Niccole
I love how supportive these leggings are. Thick fabric is warm too. I am 5 ’ 8 ”, 130# and size large fits snug. I also like the side pocket.
$140.00
free of plastic microfibers and petrochemical- based synthetics, this product is made with 100% pure merino fibers that were hand- picked for strength and softness to create a luxurious fabric that naturally breathes and resists
$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...
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