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Stay warm and stylish with our collection of thermal crew neck long sleeve shirts. Designed for comfort and versatility, these shirts feature soft, breathable fabrics that provide excellent insulation without bulk. Perfect for layering or wearing on their own, they offer a classic fit that flatters every body type. Ideal for chilly days, our thermal crew necks keep you cozy while maintaining a polished look. Explore a variety of colors and styles to enhance your wardrobe and tackle any adventure with confidence.
$36.00
relaxed fit long sleeve shirt ultra- soft brushed interior offers all- day comfort and warmth true comfort stretch for ease of movement non- deforming design helps hold the shape tag- free design provides a fuss- free wear crew neckline allows for a snug, comfortable
$130.00
insulation, articulation and ventilation are seamlessly integrated to amplify movement and comfort during high- intensity activities ... slim fit merino sport yarn combines the power of merino with the durability and fast dry times of polyester seamlessly knit mesh ventilation designed to keep you...
$45.00
back shoulder jersey yoke overlay front jersey pocket with button one and only clip label back neck woven label ... 220 gsm thermal fabric 70% cotton/ 26% polyester/ 4%
$20.97
WAS: $49.99*
Great for outdoor sports ... Under Armour under layers are great for playing outdoor sports in the cold. ... I really like the bright white color and how warm it keeps me in cold
5
MelMull
It's perfect for what we need. It works well for the cold soccer mornings.
5
Cbwell
Great fit and keeps warm. Wear under soccer jersey for cold weather
5
JRHB
This shirt does a great job of keeping me warm, washes well, and still looks brand new!
5
Jesszi8000
Great layer under Armour shirt to wear underneath fall sports gear
5
Soccermomtwins
Great material. Under Armour under layers are great for playing outdoor sports in the cold.
$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
$100.00
machine wash ... knit™- engineered body mapped technology? to regulate your body temperature and? let your skin breathe during high- intensity activity cool- lite™- a lightweight and breathable fabric blend raglan sleeve construction for mobility gusseted underarms for mobility and comfort thumb...
5
Mark
[ I am getting synthetic products out of my wardrobe and I have become addicted to Icebreaker long sleeve layering shirts. They are extremely comfortable, come in a variety of nice colors and weights, so are quickly replaced my synthetic top layers.
5
The Greek
[ This is one of two or three of the most amazing clothes I have. Technically it's a base layer but it's something I wear almost anywhere with the right pants and shoes. It's wool, but it's incredibly soft and comfortable. It works great as a base layer, but it's versatile.
5
Fredrick
[ This color is perfect, very beautiful and should be used again and again. Ideal light weight garment for fitness. Very breathable.
$23.37-$45.00
WAS: $45.00*
relaxed fit men ’s shirt long sleeves thermal fabric is breathable and naturally regulates your temperature naturals embroidery at chest naturals icon clip and back neck woven
$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.
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WAS: $54.00*
a classic regular fit silhouette combines with understated chest embroidery for an effortlessly stylish look. ... its heavy waffle knit thermal fabric blends 60% cotton and 40% polyester for ultimate comfort and a yarn dye print that
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WAS: $130.00*
slim fit to follow contours of the body made with merino sport yarn: combines durability and fast dry times of polyester seamlessly knit mesh ventilation designed to keep you dry and comfortable 3d mapping provides maximum mobility ribbed elbows provide added durability mesh zones for better...
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.
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.
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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...
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!
$14.97
WAS: $44.99*
Love Champion Duofold Long Johns ... two- layer thermal for warmth in extremely cold weather flatlock seams to avoid irritation drop tail protection against the
5
ToastyWarm
I have been buying the `` Varitherm Expedition '' long johns for decades. I became aware of them when my children were young, while comparing Dick's in store selection quality. They are so warm for winter sports.( I even enjoy wearing them as pjs.) I just purchased multiple sets for Christmas for my adult sons( all their wives confiscated their sets) and even my first grandchild! They all love the `` Expedition ''!
5
SM72
I bought this for my boyfriend the night of the freezing weather( Houston we are babies about that) and he had to work outside all night in it. He said it was was warm and not to bulky.
5
Jimmyp
Great fit! Summer now, so wo n't use it for a while, but seems like a really nice base layer.
5
Chow
Could not believe how soft, warm and comfortable the Baselayer crew was. Tried one bought five.
5
R A C in Rapid
Fits great. Great all around first level of protection against your skin.
$19.99
100 percent cotton construction ... heavyweight waffle knit ribbed cuffs rated for very cold
5
Mike 8x6
Size up. Good thermals. Keeps you cozy. Not bulky nor heavy feeling.
$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
$34.99
regular fit built with force technology to wick sweat and fast drying rugged flex® moves with you fights odor strategically placed flatlock seams reduce chafing concealed thumb loop tagless
$13.48
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
$41.00
this kids' thermal top is also knitted with mtf soft spun polyester fibers that transport moisture away from the skin to keep you warm, dry and
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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 shoulder panels eliminate top shoulder seams flatlock seam construction designed to minimize...
$120.00
women ’s regular fit themal interlock knit fabric set in sleeves thermoregulation and
$65.00
with a flatlock seam construction designed to help prevent chafing, a crew neck built with set- in long sleeves, and all of the benefits of merino, this kids' base layer will help them enjoy winter
$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...
$32.97-$130.00
WAS: $130.00*
men ’s relaxed fit top interlock knit fabric breathability and thermoregulation drop shoulder sleeves ... odor
$39.99
WAS: $44.99*
outside layer: 70% polyester/ 30% merino wool ... pruf® technical fiber polyester with silvadur™ intelligent freshness ... inside layer: 100% cold ... rib cuffs drop tail for added protection against cold regular
$55.97-$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
$45.00
fit& design fitted long sleeve shirt second skin® technology provides a smooth, next- to- skin feel classic crew neckline smooth jersey fabric with brushed interior for warmth available in solid and heather designs dsg® logo sleeve graphic technology wicking – absorbs moisture to...
5
Batboy28906
Bought this for under my sons baseball uniform for colder spring nights. Definitely worth the price. Cost effective and great product
5
Aw14
Feels good and kept me warm. Will definitely buy more.
5
Acalheel
Good for cold days on the field. Needed when it ’s windy and cold.
5
Hatethecold
These were a good deal. Great price on sale and warm.
5
AB643
So comfortable; bought a second color so I could have another one
$34.99
It is warm and comfortable. ... Very comfortable! ... LOVE❤️Love these things don ’ t sweat keeps me warm and dry makes me wan na cry reach for the sky ... Very warm More like a
5
Firelion
I bought this baselayer to use for my recent snowboarding trip. The weather was windy and 8 degrees each day. I already owned the baselayer pants which were military issued. This top was perfect. It kept me warm for 3 days. All I used was the baselayer and a hoodie with my ski shell over the top. Perfect setup all day long.
5
Mike2380
Nice warm shirt. Not too thick. Very comfortable!!!
5
MercManSniper2A
LOVE❤️Love these things don ’ t sweat keeps me warm and dry makes me wan na cry reach for the sky
5
LabDad
I have used ColdPruf gear for about 3 years. Living in the northeast it gets cold. These products can not be beat. I highly recommend them to everyone.
5
mal517
Very satisfied with this item. It is warm and comfortable.
$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...
$85.00
Perfect for those slightly cooler, hiking days ... Great for visibility while running! ... Perfect for work and leisure ... Great fit, durable and comfortable. ... Great for cooler summer
5
AP
[ Nice casual soft base layer. Very thin and lightweight. Nice color and decent price on sale.
5
PB
[ This is a great shirt. Super soft and light. Great for travel and as a base layer for chili days or evenings. The only gripe is that I bought one of these a year ago, size large. When I bought the most recent one the large was now too tight. So I bought an extra large. Body fit is now great but sleeves are long!!
5
Al
[ I bought 2- 3 yearly of these type since 2017 and almost all of my techs shirts are now IB. i tried a different branD and i still come back for Icebreaker* I need to buy more and plan to use these on my TMB( Chamonix) 10 day hike in Aug /2025
5
RK
[ Great quality as always with Icebreaker. I use this shirt for Summer outings to avoid using too much sunscreen, yet keeps me cool enough.
5
Val
[ I have 2 previous versions sphere ii long sleeve t shirts that I wear on summer hike. I like them even if their material is not strong enough for hiking trips. one of them have a few small holes after laundry. this version seems to be stronger because material is thicker. another difference is sizing. I need M size in contrast of S size from previous version.
$29.99
trim athletic fit with extra length in body and sleeves to give you comfort while you move crewneck for easy on and off slip hemmed cuffs to hold you in as you move lightweight, with single layer engineering for a comfortable
$85.00
5' 4 '' /130 lb, 36 DD and the men's Medium is PERFECT. ... Love to wear them in any weather, best on the boat in summer breeze days. ... Perfect for summer mornings, and even hot
5
AP
[ Nice casual soft base layer. Very thin and lightweight. Nice color and decent price on sale.
5
PB
[ This is a great shirt. Super soft and light. Great for travel and as a base layer for chili days or evenings. The only gripe is that I bought one of these a year ago, size large. When I bought the most recent one the large was now too tight. So I bought an extra large. Body fit is now great but sleeves are long!!
5
Al
[ I bought 2- 3 yearly of these type since 2017 and almost all of my techs shirts are now IB. i tried a different branD and i still come back for Icebreaker* I need to buy more and plan to use these on my TMB( Chamonix) 10 day hike in Aug /2025
5
RK
[ Great quality as always with Icebreaker. I use this shirt for Summer outings to avoid using too much sunscreen, yet keeps me cool enough.
5
Val
[ I have 2 previous versions sphere ii long sleeve t shirts that I wear on summer hike. I like them even if their material is not strong enough for hiking trips. one of them have a few small holes after laundry. this version seems to be stronger because material is thicker. another difference is sizing. I need M size in contrast of S size from previous version.
$49.99
quick dry lightweight flexible and durable crew neckline construction: comfortable neck opening that keeps shirt in place during running, training or lifting
$44.99
made with sustainable fabrics and crafted specifically for those cool spring days. ... mizuno drylite® moisture management: using a dual filament yarn construction to transport excess moisture away from the body to create a comfortable and dry body microclimate for
$49.99
set- in sleeve ... with true compression fit and deep raglan sleeve for full range of motion. ... the thermo compression long sleeve has a dual sided 4 way stretch moisture wicking outer to keep you fresh and dry and a plush, fleeced lined inner to keep you warm and
$52.17-$69.27
WAS: $90.00*
fit& design crewneck long sleeve waffle pattern ... when the sun dips low and the breeze picks up, costa sweaters and hoodies are built to keep you warm without leaving the water
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WAS: $55.00*
classic fit men ’s hoodie drop tail curved hem adds coverage as you move hooded silhouette with dtm drawcords for a custom fit v- stitch detailing at front neck branded name logo screenprint at chest one and only clip and back neck woven
$115.00
To me, at least, the cut feels a little bit more athletic than most of Smartwool's gear, so it fits much closer to the body than a typical t- shirt.. but the collar fits closely to your neck, which I
5
Patches
[ Needed a thicker base layer for skiing on those colder days. Perfect addition.
5
Captain Jimmy
[ This base layer is really comfortable. It is warm and does not restrict movement. I wish I had found this earlier. Fit is true to size. I 'm not sure why anyone would not be happy with this- buy it!
5
Jbear
[ Merino is THE stuff for active comfort in the cold. The key is staying dry between rain, snow, and sweat... it's challenging. 100%( 95 and 88 also good) merino helps to achieve this goal. It's warm when you need it to be and water( all types) evaporates quickly to keep you from getting chilled from damp clothing. It's got to be part of a system though, and you have to use that system properly or you will get damp and cold. We just came back from five nights in our tent@ an avg. of 26F at night. After hiking all day in these and then, putting on fresh Smartwool tops and bottoms we were warm all night( we could have stayed in the same set if we had to). Medium weight is probably fine for most applications, but do be sure you 've got the right system for the conditions. In summer and spring it's less critical, but in winter( THE best time IMO)... having the wrong gear can make for a miserable experience... and a dangerous one. Smartwool has the added benefit of being able to go in the dryer at home... not all merino products can. That's my take.
5
JKNOR
[ When it comes to staying warm during the winter, base layers are KEY! My old Smartwool long- sleeve lasted me years of use. Loved my first one so much that when it came to finally replace it, it was a no brainer. Kept me comfortable and warm during winter months of New Zealand, Japan, all the way to the summit of Mauna Kea. I 've never had a base layer fit so good right off the shelf. Felt like it I was putting on my favorite tshit. Could n't recommend it more
5
Sheri
[ My son loved the wool sweater I bought him for Christmas. It was soft and warm at same time. Mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
$159.99
machine washable- gentle cycle the powerful tri- zone heating system includes 3 built- in heating panels, strategically placed on the chest and upper back to warm your core body temperature crew neck design ultra- fine carbon fiber heating
5
Renee
You don ’ t realize how much you need a heated base layer until you have one! It ’s been such a benefit to various aspects of my life. I wear it beneath my layers when spending time outdoors during winter in Wisconsin. But I ’ ve also worn it to work( in an office) during especially cold days. It fits true to size and is comfy. Somehow it seems to trap heat inside yet it ’s also breathable, I don ’ t sweat in it like I have with other base layers.
5
The Base Layer Shirt takes the bite out of any cold day! And the battery last for hours! Washed it in a cold wash then hung it to dry, easy peesey! Definitely worth it!
5
I bought the base layer for my son who works at Disneyland in Anaheim Ca. and he loves it. Keeps hos 3X body warm when working nights. Great product
5
GLWS
Just wearing the shirt and not on has been enough to keep me warm. The few times I have used the heat, I set it on lthe lowest setting and was plenty warm.
5
Luke B
Definitely worth having extra battery banks if you ’ re skiing all day or anything like that, also could use an extra hole in the battery pouch so you can route the cable to a pant pocket more easily. Besides that, it definitely lasts through the wash and multiple winters
$44.99
crewneck long sleeves concealed thumb loops hold the sleeves in place mid- weight polyester and wool blend keeps you warm and regulates temperature smooth flatlock seams reduce chafing tagless
5
AnthonyV
Very comfortable and warm, while also lightweight, perfect for a few days on the slopes!
5
Denise
[ Keeps my husband warm when he works outside! Will purchase more
5
SOCORROV
They are a Christmas gift but the material is awesome.
5
ArturoR
It is amazing, kept me warm when the tempt dropped to 17°F
5
Slim67
Lightweight, soft and warm, just what is need from a base layer
$19.99
WAS: $24.99*
60% combed ring spun cotton, 40% polyester fabric weight: 5. 25 oz. ... two- layer engineering traps air between layers providing a natural barrier of warmth tagless design and flat seams provide a smooth fit and extra comfort rib cuffs and drop tail for added protection against
5
LALO4U
This is great for people who work outside keeping you warm and comfortable
5
nickname111111
i get cold easily. this helps. thank you very much
5
Ore76
I purchased this also for my father and he just loves it.
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