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Stay warm and stylish with our collection of thermal shirts, designed for ultimate comfort in cooler weather. Crafted from soft, breathable fabrics, these shirts provide excellent insulation while allowing for easy movement. Perfect for layering or wearing on their own, our thermal shirts come in various styles and fits to suit your personal taste. Whether you're heading outdoors or lounging at home, these versatile pieces are essential for your cold-weather wardrobe. Embrace warmth without sacrificing style with our selection of thermal shirts.
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WAS: $55.00*
The hoodie is thermal but lightweight and comfortable and can wear anywhere ... Great
5
MN19
The hoodie is thermal but lightweight and comfortable and can wear anywhere
$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.
$10.48-$45.00
WAS: $45.00*
Really comfortable and good all purpose long sleeve. ... Awesome
4
Kc3023
Really comfortable and good all purpose long sleeve.
$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.
$130.00
It is soft and not
4
amylikestorun
It is soft and not itching. Light weight and fast drying. My only complain is the neck fabric is kinda odd. I might need to check how the model is wearing it.
$90.00
Comfortable fit, true to size and dries quickly when the sweat gets going. ... Great dor working out and very comfortable under a sweater for cooler days. ... Nice lightweight
5
Stinky
[ I recently purchased two of these shirts in different colors. Good breathability and wicking. Great dor working out and very comfortable under a sweater for cooler days.
5
CAL
[ The most comfortable shirt I own and I really enjoy the way the material feels. I also own the `` normal '' ZoneKnit shirts and I had problems with the fabric tearing easily. This has held up better.
5
B
[ I play ping pong with it, sleep with it, and wear it several times a week without washing it.
5
JJJL
[ blending with TENCEL making it more comfortable, also no funky smell in the summer.
5
BJ
[ Bought this shirt to run in and it's great. Comfortable fit, true to size and dries quickly when the sweat gets going.
$92.00
I ’ m 5 ’ 2 ” and 140 pound and a medium fit great. ... I wore it under a ski jacket for snow skiing and it was super comfortable warm and fits great. ... [ Love
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.
$92.00
Warmth and comfort all day. ... Wouldn ’ t think of leaving without out this
5
Snowhound1701
[ If you ’ re even thinking of going up to the mountains to ski or snowboard for a few days you better have all the layers for any conditions. Unless you want to freeze or be sipping hot cocoa in the lodge while your crew are a ripping it up. There is no equal when it comes to this base layer. Warmth and comfort all day. This is the Cadillac. Wouldn ’ t think of leaving without out this top.
$159.99
I highly recommend the heated base layer for anyone that spends time outdoors in the winter. ... It ’s just the right amount of heat in the right places to make cold winter hunting trips much more
5
I started with the Action Heat socks, and had to add the base layer to my collection. It ’s just the right amount of heat in the right places to make cold winter hunting trips much more enjoyable. I highly recommend the heated base layer for anyone that spends time outdoors in the winter.
5
Motorcycle C.
I got this primarily for motorcycling in colder weather. It works great. I can wear this with my jacket and jacket liner and I do n't have to wear other layers. I 've only used it so far riding in 50 degree weather but it was warm enough I had to turn it down or off. I usually wear a large but wanted it to fit tighter so I got a medium. The medium fits great. I would say the medium fits me perfect where normally I would wear a large t- shirt or long sleeve. Not too tight but not loose. Have n't had long enough to know how long the battery would last but have used it for a couple hours switching between high and medium and still have battery left. Would definitely use while skiing, etc
5
Laura
Great service and reasonable delivery time, especially as a Christmas order. This base garment is very well made and sizing is perfect. Very pleased.
5
Joshua
I just got my base layer and wore it to walk the dog and it was cold and windy outside. Absolutely was warmer
5
Rodney
Heats your body very well, keeps the cold out, easy to use, must be cleaned gently, I use all the time when a must to be outside for a long duration.
$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.
$39.99
I bought this for my daughter so she can stay warm in winter ... Great for cold
5
ATLMiddy
I bought this for my daughter so she can stay warm in winter
$41.28-$61.99
WAS: $88.00*
Super comfy and soft! ... Great for lounging around and wearing out. ... It drapes well and it's not cut too long. ... Soft with good structure and fit. ... Perfect Waffle
5
Gus
Probably the best waffle crew I have ever had. Soft with good structure and fit. It drapes well and it's not cut too long. I like them so much I bought three more. Great for lounging around and wearing out. Highly recommended. Please make more colors!
5
Zack T.
Fantastic product, as always! Super comfy and soft!
5
Luke
Great shirts fits nicely. Great color too. Baggy enough to wear over a T- shirt if you run hot and it ’s not quite cold enough for a hoodie.
$130.00
Functional and stylish ... [ This is a quality built base layer and I 've worn it by itself or under a light jacket for plenty of warmth. ... It ’s form fitting and the multi panels really make it articulate with my
5
MoosejawDon
[ Feels light on the skin and is plenty warm. I would like a little more move/breath ability in the pits however I do not feel sweaty. Perfect base or mid layer
5
Timoby2k
[ This has become my new favorite baselayer. It ’s form fitting and the multi panels really make it articulate with my movements. I wear it as my only layer in damp mid thirty degree runs. Also looks good to wear on its own out and about.
4
Rory
[ This is a quality built base layer and I 've worn it by itself or under a light jacket for plenty of warmth. Be advised to go one size up, especially if you have an athletic muscular build. Fits close to skin, athletic cut for sure. Looks awesome.
$120.00
I am generally a small/medium( 5 ’ 7 ”, 125 lbs, athletic) and I ordered a small and it fit perfectly. ... The dark red color and the zipper make it cute enough to wear as a sweater, plus it ’s super comfy and
5
Hikeryogi
I love these for layering or just on their own. The dark red color and the zipper make it cute enough to wear as a sweater, plus it ’s super comfy and warm. I am generally a small/medium( 5 ’ 7 ”, 125 lbs, athletic) and I ordered a small and it fit perfectly. Medium was too wide in my underarms and too long. I live in Florida and use this for winter trips to NY and for winter hiking.
5
piapia
love the fit, very warm base layer. true to size. would repurchase
$39.99-$41.99
I like the long back of the shirt to cover my assets. ... Keeps Me Warm ... I wore this to the Eagles playoff game and I was very warm and comfortable ... This is great for the cold
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.
5
Figarohall
I wore this to the Eagles playoff game and I was very warm and comfortable
5
Tia111
This is great for the cold weather. I like the long back of the shirt to cover my assets.
$39.99
I bought this to wear skiing in Tahoe and it kept me nice and warm in 20 degree weather. ... They were soft and comfortable enough to wear around the base of the mountain when not skiing, and they kept me warm when was doing down the
5
CHutson
I bought this to wear skiing in Tahoe and it kept me nice and warm in 20 degree weather. I love how the back is longer and doesn ’ t ride up.
5
Meals
Bought these specifically to wear while skiing in the Rockies in Colorado in January. They were soft and comfortable enough to wear around the base of the mountain when not skiing, and they kept me warm when was doing down the slopes. Have no complaints about this shirt. It was perfect
4
Zephyr TX
I bought this for my teen to use as a base layer for skiing and sledding. It kept him dry and warm and fit him well. I bought a duofold base later too too and liked the duo fold a little better as far as stitch quality and material quality and the duofold material seemed a little thicker but I ’ m keeping this one too.
$120.00
Longer than anticipated but probably good for tucking in, though not the look I wanted. ... Nice quality, runs
$130.00
The color is very pretty and overall was a very comfortable base layer. ... It is the perfect weight and is useful all year round! ... They are a more snug fit, but not too
5
G Love
[ This top made me ski like an olympiad. Really, it's that good, so I 'm buying it in navy. My favorite underlayer by a long shot, I literally wore it every day of my last ski trip- 5 days in a row. Shhhh.
5
Jess13
[ I bought this about 3 weeks ago… to keep me warm on a climbing trip where we would encounter cooler weather! I have dressed it up, wore around the cabin and out for hikes. I highly recommend!
5
Laurie
[ I bought this several weeks ago and have worn it on several chilly( and hilly) NE dog walks. It provides a warm, yet breathable layer under my light down jacket. It fits very close to my body and adds very little bulk. I appreciate the generous sleeve length. I have yet to launder it as I wear it as a middle layer.
5
Bouldergirl
[ This is my favorite top for hiking. It is the perfect weight and is useful all year round! I wear it's a base layer in winter and a top layer in summer for cooler days. Best material ever!
5
MPOSH
[ These Smartwool shirts are some of my favorite. They are a more snug fit, but not too tight. The purple color is so pretty. Very happy with this purchase.
$130.00
[ I bought the Smartwool to keep me warm and comfortable on a 12 day trek in Nepal. ... Stylish and functional ... Excellent comfort and warmth ... It has a very comfortable feel and looks great as
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.
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.
$98.00
My favorite feature is the folding sleeve to create a mitten around your hands. ... It does fit a little small in my opinion but still fit ok in my regular size but a little short and
5
Mamaofmany
[ I am not an avid runner by any means, but I do love getting in some quality personal time by jogging a trail we made through our property in the woods. We are just starting to experience chilly mornings on the East Coast with temps in the 40's most early mornings. This hoodie is absolutely perfect this time of year. It's extremely light to wear but incredibly warm. My favorite features are the thumb holes and the hidden mittens! It is so versatile and can be something I throw on the take a run in the woods or a grocery run! The color and texture is the perfect addition to any wardrobe. I 've worn it with 3 different color yoga leggings and it looked amazing each time. The roll up hood is also something very helpful if you are anything like I am, and do n't like to have a hood bouncing and hitting your head on your run. I do n't currently use a smart watch, but having a window for one is ingenious. 5 out of 5 stars 🌟
5
AimeeE
[ This hoodie is very lightweight and comfortable to wear. It keeps me warm on a run without overheating. The material is very flexible and not bothersome or irritating while out on a casual run. My favorite feature is the folding sleeve to create a mitten around your hands. The only downside is related more to a personal preference. I tend to like slightly longer tops and this seems a tad shorter then I might normally go for, however I would say it ’s probably standard length for these types of tops.
5
BethDutton
[ I love the fit of the Notch Thermal Hoodie 2. 0. It fits true to size for a form fitting hoodie, which I love! It keeps me warm if I ’ m doing a morning run, and fits nicely so there isn ’ t anything loose hanging down when I ’ m running. I also love how it can keep me warm while not being bulky at all. The hood is also a nice addition that doesn ’ t get in the way, but is nice to have if it starts to rain during a run. It does a great job at regulating body temperature, keeping me warm while not getting me too hot or sweaty. The inside is very soft unlike other similar hoodies that are a spandex material. The odor blocking technology has worked good as this hoodie always smells fresh after washes, which can sometimes be a problem with workout gear. I wouldn ’ t change anything about the Notch Thermal Hoodie, it ’s a great hoodie for my morning runs.
5
GoodThermal
[ The Notch Thermal Hoodie 2. 0 is a new staple in my wardrobe. The fabric is warm without being bulky, allowing for layering on very cold days if needed, without restricting movement or overheating. The style is classic, so it pairs well with any style bottoms, making it easy to throw the hoodie on without having to think much about styling. For running and working out, this hoodie is fantastic! It features odor blocking technology that prevents odor buildup, and when it is time to wash this item, it is easy to throw in the wash, making this low maintenance to care for. Another favorite feature is the subtle but ingenious watch windows built into the sleeves- making it easier than ever to check stats while running/training. Finally, another handy feature is the ability to hide away the hood, for those days or stylings where you don ’ t want or need the benefits of the hood. The built in snap and loop make it easy to roll away the hood. All in all, this is a fantastic addition to my retinue of training gear, but it is also a new favorite for every day styling. It is sleek, sophisticated, and super functional.
5
mollyc9903
[ Awesome thermal for those chilly morning runs in Massachusetts! I love the feel of this hoodie. Its lightweight and soft, but keeps your core warm while outside. I was surprised at how well if kept me protected from the chill. This thermal is now my favorite layer when I go out for a run and even a walk with my daughter. I also love the way it has a little window for my apple watch to peek through. So far I have washed this quite a few times and it still has held it shape and looks great! My only complaint is I wish it was a tiny bit longer since I do find it short in the torso area. Overall, this is an excellent choice for those chilly morning runs, but even to have as an added layer when you are watching kid's soccer for the sidelines!
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