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Stay warm and stylish with our collection of women's long sleeve thermal shirts. Designed for ultimate comfort, these shirts feature soft, breathable fabrics that provide excellent insulation without bulk. Perfect for layering or wearing on their own, they offer a flattering fit that complements any outfit. Whether you're heading outdoors or enjoying a cozy day at home, our thermal shirts keep you comfortable and chic. Explore versatile styles that effortlessly transition from casual to active, making them a must-have for your wardrobe.
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WAS: $115.00*
slim fit 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance fit updated to improve functionality while enhancing aesthetics for a range of body shapes back body seam wraps to front for body- enhancing fit crew neck with...
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!
$44.23
WAS: $110.00*
regular fit long sleeve
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WAS: $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
$49.99
quick dry lightweight flexible and durable crew neckline construction: comfortable neck opening that keeps shirt in place during running, training or lifting
$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................
$130.00
men ’s relaxed fit top interlock knit fabric breathability and thermoregulation drop shoulder sleeves ... odor
$31.49
WAS: $41.99*
fit feminine fit, long- sleeve t- shirt durable, ribbed neckline style and team spirit screen- printed team graphics additional details officially licensed
$130.00
I love the length of the body and the sleeves. ... our relaxed fit is intended to offer more room, without being baggy 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance drop shoulder...
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.
$110.00
Love that something fits tall women, is functional, comfortable, and stylish. ... Love the fit- comfortable. ... Perfect and pretty base layer great for
$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)
$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
$120.00
women ’s regular fit themal interlock knit fabric set in sleeves thermoregulation and
$56.98-$120.00
WAS: $120.00*
slim fit – intended to follow the contours of the body back body seam wraps to front for body- enhancing fit raglan sleeves flatlock seam construction designed to minimize chafing 8 ” center- front zip with semi- locking
$140.00
regular fit is intended to help give you room to move without additional bulk fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% merino wool with interlock knit for comfort flatlock seam construction designed to minimize chafing set- in...
$90.00
It did a great job keeping me warm in those temps even with wind. ... The sleeves are long which I love. ... This sweater is comfortable, soft and a great layering piece for the
5
T Oot
Just came back from Banff Canada and wore this base layer everyday. I was warm and dry in sero degree weather!
5
Terri350
They fit great, feel great, and are really warm. I will buy them again!! Not sure what else to say but they require a longer review. I really, really, really, really like these base layer tops!!
5
Mkt5308
[ I 'm tall with long arms and sometimes merino is too short in the sleeves, not this time, fit is great medium is medium. Pistachio color is bright and fun
5
Dsrote
[ I purchased a smart wool base and fell in love. it ’s easy to clean and amazingly warm for its light weight! i would buy other colors if available.
5
Silvercurls
[ Bought my Smartwool Women 's Classic All- Season Merino LS Base Layer Tops just in time for the cold weather in the “ D ”. Best referral from a friend ever! Not only do I look good because they fit beautifully but are lightweight; so I ’ m not bulky 😊 whether worn alone( burnt orange is hot 🔥) or layered under my sweater I ’ m warm and toasty…looking good! Not sweaty in this wool top; comfort is sexy, ok! Grabbing more for stocking stuffers 😊
$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...
$29.97
WAS: $66.00*
this premium shirt features sweat- wicking fabric engineered for thermoregulation — so you stay cool in the heat and warm in the cold — while the fitted silhouette makes it easy to
5
AmeliaC
Great for colder or rainy runs to which moisture and keep me warm. I wish it were a little softer but understand that ’s hard to do with wool blends and wool- like materials.
5
KarenB
This top is fantastic in the winter. It ’s light weight enough to be able to layer and the merino wool makes it so warm without adding bulk. I liked it so much I bought the neon pink also. Fits true to size.
5
SgtGlitter
The temperature regulation in this garment is unbelievably awesome. It keeps me warm enough on the start line without getting overheated during the run. It 's like magic. I just wish it came in more bright colors.
5
LyndseyK
Soft material, lightweight, keeps you warm and regulates temperature, I love the colour. Runs small so I went up a size. Kept me warm on an 80km ultra
5
AlisonM
Kept me warm, comfortable, and easy to spot for the 2024 Marine Corps Marathon!
$69.97-$130.00
WAS: $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
$56.23
WAS: $100.00*
I love it besides the thumb space. ... Could n't be happier with the warmth. ... I work in a meat room and it ’s very cold, I only have to wear my base 4 shirt and my work tshirt and I ’ m kept
5
Mom2025
Got this for my daughter, she is a teacher. Her room is cold and then she has bus duty periodically. So the 4. 0 is perfect for being somewhat sedentary. Surprisingly, actually keeps her warm! She is a chilly person normally, so cold temps are miserable for her. We 've tried many products. The Under Armour is work the investment!
5
KarenK11
I am always cold. This is the solution! Love it!
5
East Coaster
These are the best long underwear going. I mind the cold but not when wearing these.
5
Jea970
The fit is loose but not so lose that I would exchange for a smaller size. The shirt is warm but not too warm when inside. Outside it keeps me toasty at 30 degrees and I ’ m always complaining of being cold. All in all, I ’ m very happy with this purchase.
5
I recently purchased the Under Armour Base 4. 0 Crew, and it 's exceeded expectations. This top delivers comfort, warmth, and performance.
$49.99
crewneck fits closest to your body for a comfortable fit fits next- to- skin but never restrictive smooth flatlock seams enhance comfort concealed thumb
5
KellyOP
I bought two of these to wear under my scrubs for work. I was a lot warmer then without. I also wear these walking the dog. They are worth the price.
5
nan2
[ I bought this as a gift for my daughter who loves to snow ski. She was skiing in 6° weather and it helped keep her warm. She said she loves it.
$155.00
I have the bottoms to match and worn together it looks very cool. ... nike therma- fit technology helps manage your body ’s natural heat to help keep you warm in cold- weather conditions extended hem on back helps keep you covered as you bend and
5
LornaB776124390
Absolutely beautiful. Lovely material lovely colour. I have the bottoms to match and worn together it looks very cool. I have had a lots of compliments. I would definitely buy again if Nike brings out more colours.
$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...
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WAS: $125.00*
slim fit intended to follow the contours of your body fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% merino wool with interlock knit for comfort flatlock seam construction and offset shoulder and side seams designed to help increase comfort and...
$44.99
It fit really well and was long enough despite my 5' 11 '' height. ... As far as the validity of the claims I can assure you that they are all 100% and if you have ever attempted to work in long John's these will be a game changer for
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.
$155.00
insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort 100% merino yarn provides the full power of merino with moisture management, insulation, thermoregulation, and odor control insulating terry loops are seamlessly paired with mesh ventilation in...
$44.97-$98.00
WAS: $98.00*
Your hands can easily be covered fully, you can see your watch to monitor progress without pulling your sleeves up, there is a pocket for your key and the hood is securelytucked
5
YaelE
Very comfortable, Keeps me warm, great cover for the hands. love it.
5
RaechelD
Love this hoody for cool, windy, or rainy runs. It ’s very soft and warm! I wore it on my first 50K and it was incredibly comfortable. The sleeves are long enough for the thumb holes and the pull over hand warmers are nice if you didn ’ t bring gloves.
5
AuroraG
My new favorite hoody to run in for chilly weather! height 5' 2 115lbs size XS is perfect for me
5
KellyI
Wonderfully comfortable for these cold months, without being heavy or bulky. Has definitely become a staple piece in my running wardrobe. Medium fits perfectly( 5 ’ 10 ”- 155 lbs- typically size 8/10)
5
KimberlyM
Great midweight layer for Saturday morning long runs in the South. I wear it alone for temps in the low 30s. Love the pretty lavender color. Also just enjoy wearing it for casual wear on non running days.
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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,...
$54.99
I received the thermal heavyweight shirt as part of a Carhartt Crew Field Test, but I can honestly say that this shirt is necessary for everyone living in a cold
4
ClaireT
[ Not quite the perfect fit for my girlfriend, but she says they are very comfortable. We also like that they are machine washable, unlike most heavyweight layers with merino wool. And for the price( around 50% or less the cost of other heavyweight layers) you ca n't beat it!
$85.00
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 coverage reflective bar on back helps you
$100.00
semi fitted ultimate lightweight warmth reflective trim at the back odor resistant fold- over hand mitts watch window on left sleeve ... this soft mid layer is also odor- resistant so you can stay fresh while you 're working hard
$95.00
viz® high visibility colors and reflective elements main body: 100% polyester ... fit and design pedal to zero™: going by bike 18mi/ 29km offsets the climate impact of this garment select thermal fleece sets the benchmark for warmth and moisture transfer full- length vislon® zipper for ventilation...
$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.
$19.99
WAS: $24.99*
warmth is so basic two- layer fabric engineering traps warm air between layers fabric weight: 5. 25 oz fiber content: both layers- 60% cotton/ 40% polyester crew neck set- in long sleeves flat seams to prevent chaffing tagless
5
DreaV
Keeps me warm, does n't ride up( great fit) and super soft!
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WAS: $130.00*
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