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Discover the ultimate comfort and performance with our collection of smartwool base layer tops. Designed for optimal warmth and moisture management, these tops are perfect for layering during outdoor adventures or everyday wear. Crafted from soft, breathable materials, they provide excellent insulation while keeping you dry and comfortable. Whether you're skiing, hiking, or simply enjoying the outdoors, our smartwool base layer tops offer the perfect blend of functionality and style. Elevate your active wardrobe with these essential pieces that adapt to your lifestyle.
$90.00
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
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
Upshpr
[ For reference, I purchased a Medium. I ’ m 5 ’ 4 ”, 128 pounds, pear shaped, so, smaller on top, curvier on bottom. I got the black which is opaque. I wear this baselayer weight for cross country skiing when it ’s above 30 degrees or so. Smartwool varies in size for me, these are not extremely fitted like some of the 1/4 zips so go with your normal size.
5
KC123
[ I love this shirt. I recently got another few to fill up my wardrobe after a move from AZ to OR. I have had the originals for almost 9 years and wear them all winter long. I have been hiking, backpacking, and traveling with them and they have withstood the test of time. They are comfortable alone or as under layer. I additionally regularly wear it as a mid layer with a smartwool tank below. I truly love these shirts. If it helps, I wear an XS and am 5 ’ 2 ’ ’ and 120- 130lbs depending on the year.
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 😊
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.
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WAS: $115.00*
Fits well, comfortable and a breathable but warm base layer. ... great base layer! ... This shirt is so soft and warm! ... She loves it- Warm and cozy and fits like a
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
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.
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!
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WAS: $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.
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WAS: $115.00*
[ This Merino wool base layer shirt fits well, is comfortable, and provides the extra layer of warmth to keep me cozy. ... Warm, lightweight, doesn ’ t stink, comfortable to sleep in and definitely a base layer option for hikes should you want
5
gilllll
[ I bought this for a trip to Yellowstone national park. The color is a bit different from the photo in natural light. Less coral/orangish as I expected. A bit darker and a bit more pinkish. But it's still really pretty and of course warm and cozy as the other Smartwool 250 I owned.
5
Annie
[ I am addicted to smartwool 250 baselayers. They always keep me warm and hold up wash after wash. The material doesn ’ t pill at all. I wear them all fall and winter.
5
Connie
[ I purchased this and the smart wool 250 bottoms for camping/hiking. They are exactly what you think they are and do exactly what you want them to. Warm, lightweight, doesn ’ t stink, comfortable to sleep in and definitely a base layer option for hikes should you want one. I purchased the set on the mystery gift promo- 100% worth it. Value value value.
5
Ellen F
[ Best cozy layer ever. Bought crew and leggings. My walks in the cold weather are so much happier now! Easy to order and fast delivery. Recommend to anyone!!
5
limabean
[ Gave to my daughter for Christmas. She loves it! Large fit perfectly It is great fabric and perfect weight! Would purchase again! Would like it come in Navy.
$120.00
Longer than anticipated but probably good for tucking in, though not the look I wanted. ... Nice quality, runs
$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.
$90.00
Since my days of living in the frigid mountains of northern Utah, I 've discovered the breathability of Smartwool's all- season merino long sleeve base layer makes it both the perfect shirt for keeping warm on winter's coldest days as well as ideal workout
5
JD L.
Like most Smartwool products I have purchased, this one is a nice weight, completely soft and comfortable AND attractive. I get compliments on it all the time.
5
Mike B.
Super comfortable first wear while on a 2 day backpacking trip. It made a great base layer and then when temps when up it was nice on its own. And a layer of sun protection with long sleeves! Odor control was evident, but control being the key word-- definitely not absent. I recommend this shirt and look forward to using again on the next hike and for my trip to the Tetons next month( as well as trying as a base layer for snow skiing!).
5
BJ
Perfect base layer for Spring in the mountains. Not too light, not too heavy, just right.
5
Thunderbolt417
[ I 've long been an unabashed devotee of all Smartwool products but their base layers, like the classic all- season merino long sleeve shirt, is truly the best money can buy. Since my days of living in the frigid mountains of northern Utah, I 've discovered the breathability of Smartwool's all- season merino long sleeve base layer makes it both the perfect shirt for keeping warm on winter's coldest days as well as ideal workout apparel. Smartwool base layers also make the best all- season pajamas imaginable. The all- season merino long sleeve shirt feels like a gentle hug when you slip it on, and remains comfortable until you 've completed your workout — whether it be a 3- mile hike in the frigid cold or a home gym weight training session. Smartwool has long been the gold standard for merino wool apparel. When you purchase your first Smartwool product, you 'll understand why.
5
Tony99
[ I have tried more than one brand of merino tops Keep coming back to smart wool for best quality and fit. They also keep their shape. The price is inline with other brands
$115.00
It keeps him warm during our cold winters in Minnesota. ... [ This was a gift for my son. ... Perfect
5
BB
Great base layer at a good weight, and it looks good.
5
Kevin
Great base layer for winter here in Virginia. Midweight, good down to 20 or so. Excellent fit and nice color too. Smartwool products are always well made( and do n't have annoying labels!)
5
Patches
[ Needed a thicker base layer for skiing on those colder days. Perfect addition.
4
Skitch
[ This was a gift for my son. It keeps him warm during our cold winters in Minnesota.
$115.00
I like the way it fits and the pattern is too cute to cover up. ... [ Fits great, not itchy, very comfortable and breathable, warm and i like the color. ... It was also warmer than I need for cross country skiing so I ultimately return for a lighter weight
5
L Mar
Great for a short run on a cold day. Looking forward to using this sweater during ski season. This is my second purchase of a similar product.
5
Upshpr
I bought the medium but needed a size up as it fits closely. 5' 4, 130#, 34B, curvy on bottom. It was also warmer than I need for cross country skiing so I ultimately return for a lighter weight one. It is as described and nicely made, however. the wine colored one with the dots is super cute.
5
NickName
[ Love the pattern and softness of this top. It ’s long enough to keep it from riding up over my ski pants. It is more fitted which is good to keep the warmth in and the pattern makes it cute enough to wear casually outside of winter sports.
5
Ada B
[ Just what I needed for a day of outdoor adventure. Warm and cozy baselayer for sub- zero days. Zips up my neck for extra warmth. Love the color as well.
5
Agaa
[ Fits great, not itchy, very comfortable and breathable, warm and i like the color. It is consistent with Smartwool sizing. I usually wear M and it feels great!
$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.
4
BB
This runs a tiny bit small but is an outstanding base layer.
$130.00
The color is very pretty and overall was a very comfortable base layer. ... It provides a warm, yet breathable layer under my light down jacket. ... Not soft, definitely not a snuggly sweater, but it's a great layer for cold days and does n't get...
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.
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