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Discover the ultimate in comfort and performance with our collection of smartwool running shirts. Designed for avid runners, these shirts feature moisture-wicking properties to keep you dry and comfortable during your workouts. The lightweight, breathable fabric ensures optimal temperature regulation, while the soft texture provides a chafe-free experience. With a variety of styles and fits, you can find the perfect smartwool running shirt to enhance your running experience. Elevate your performance and enjoy every mile with these high-quality, functional pieces.
$38.97
WAS: $108.00*
fit& design our slim fit is intended to follow the contours of the body flatlock seam construction and offset shoulder and side seams designed to help increase comfort and minimize chafing offset shoulder and side seams designed to increase comfort targeted mesh ventilation technology fabric...
5
mullimullimullis
Fit is great, typical Merino, lightweight, and great as a base layer. Purchased on sale and a good value.
$60.00
Super light weight and comfortable, would definitely buy again! ... I love the light weight shirt for summer! ... I love how effortless wearing this shirt is. ... very comfortable and does not retain body odor so I c an wear it again and again while traveling without needing to
5
JVWI
[ This shirt is a game changer, it is soft, has a nice drape, not too clingy and comfortable at any temperature. I have three of these so I do n't have to wait next to the washer like a two year old whose lovey is getting cleaned.
5
lightspeed
[ I 've been travelling abroad for several weeks with this shirt and it has been great. It's odor- resistant, dries quickly after a sink- washing, and very cool. Time will tell if it holds up, but so far, so good.
5
In Avon
[ I am very happy with this Tee. It is lightweight and comfortable to wear and I get compliments on the fit. I worked in the yard for several hours in 80 degree heat and it kept me cool and comfortable. I could have worn it the next day as it did not retain any odor. I was n't certain how the addition of Lyocell to the Wool would affect the breathability of the fabric. I am happy to say it worked just fine! I have not yet washed it but am sure it will live up to the Smartwool standards. Nice to have a v- neck option as not all of us look good in crew neck styles. From a modesty standpoint you do have to be a bit careful when leaning over. I normally wear a medium however based on the review I ordered a small and it fits perfect.
5
Jassie
[ Overall this shirt is great- flattering fit, awesome teal color, soft and wicking fabric. The only reason I did n't keep it was the v- neck was just a little too low. The shirt's main use would be hiking and I need more sun coverage on my chest. Too bad, because it would be a solid ten if it was n't so cleavy.
$60.00
odor- resistant technology helps combat odor- causing microbes to keep you fresh ... regular fit short sleeve t- shirt gives you room to move without any additional bulk made with ultra- lightweight, super- soft, blended merino and tencel™ performance fabric designed to help you stay cool and...
5
Hollyrama
[ This is my new favorite hiking shirt! Comfortable, dries fast, and stays( relatively) stink free. The fit is relaxed, and it is lightweight so I don ’ t get too hot in it.
5
Renea95
[ Love the comfort. It runs a bit long, but not bad. Highly recommend this product. It is very comfortable and good for a variety of activities.
5
AZHikerChick
[ I love this shirt. Finally a women's cut that does n't snug in all the wrong places. It's roomy and light weight. Perfect for layering on cool desert mornings.
$75.00
fit& design athletic fit is intended to be body- skimming and enhance the body in motion reflective elements for added visibility in low- light conditions this ultra- lightweight, super- soft, blended merino and tencel™ lyocell performance fabric is designed to help you stay cool and comfortable...
$55.00
regular fit tank top gives you room to move without any additional bulk made with ultra- lightweight, super- soft, blended merino and tencel™ performance fabric designed to help you stay cool and comfortable when you work up a sweat classic racerback design delivers enhanced movement and
See Price in Cart
WAS: $120.00*
as one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature- regulated as you enjoy high-...
$120.00
slim fit baselayer top fit updated to improve functionality while enhancing aesthetics for a range of body shapes classic, comfortable crewneck design raglan sleeves achieve added comfort back body seam wraps to front for body- enhancing fit shoulder panels eliminate top shoulder seams flatlock...
5
JaniceN
[ I bought this about a month ago in black and Heather gray. I do miles of outdoor walking every day and need a base layer for walking in the winter in Vermont. This works well as a first layer a shirt and my down jacket. Washed well in cold water, hang on a hanger to dry.
5
sof2024
[ This is my go- to base layer for skiing( or any other outdoor cardio activity... if I ever did one). It's form fitting and has great mobility. I always use merino fabric as my base layer since it's' breathable and odor- resistant. This top kept me warm but not overheated in 30 degree weather with a down ski jacket. I prefer to minimize my layers so this top paired with my jacket is all I need in everything but extremely cold or warm skiing weather. It's also stylish and looks good with ski pants on its own for apres!
5
Cutie
[ I love smartwool classic( midweight) baselayers. Live in Ohio where it's freezing winters and these tops work great as a baselayer or a stand alone top. They are wool so they breathe and it dries quickly if it gets damp( Unlike cotton). I have multiple smartwool tops& love them all.
5
VermontWinter
[ I bought this as a present for my daughter. It ’s perfect as an under layer for skiing. I can always count on Smartwool for quality products. She loves it!
5
Dog mom
[ It got really cold last week- 16 degrees- and I was glad I had purchased this Smartwool merino thermal top. It kept me warm during an hour hike and the material is so soft and cozy. A perfect winter base layer.
$100.00
fit& design regular fit is intended to give you room to move without additional bulk fabric combines the moisture management, temperature regulation odor resistance of merino with tencel™ lyocell fiber mesh ventilation seamlessly knit in gender- specific zones designed to help keep the body dry and...
$60.00
On the other hand, as long as you are OK with that this might happen, it is a very comfy shirt and I 'll enjoy wearing it( holes, mending and all). ... I 've been wearing it every day for last few weeks and it's very comfortable, even though it's wool it's very soft and keeps body temperature at a...
5
Georgi27
[ I 've been wearing it every day for last few weeks and it's very comfortable, even though it's wool it's very soft and keeps body temperature at a perfect level.
5
JB3122
[ Bought two of these to wear under my mtb jerseys and they work fantastic. Dry out quick, keep sweat off me. I 'm 6' 1 '', weigh about 190 and wear a small and it fits just about perfect. I 'd for sure suggest sizing down at least 1 size if you 're using this as an undershirt.
5
Guidhaus
[ Working in the yard HARD, day after day, rinsing it in shower( no time to wash every day!)... stands up to it all and still says soft and cool.
5
Neil
[ Very glad to buy this ultralight t- shirt. Used it for several times and like it very much. Be careful of the size. I did one size down after reading others' comments.
5
Virgil
[ Material is soo soft, and the fit is spot on. Breathable, wicking, everything is as advertised. Have bought many items for my Appalachian trail trip this spring, this is one of my best buys. Love this shirt, love this company!
$75.00
fit and design this ultra- lightweight, super- soft, blended merino and tencel performance fabric is designed to help you stay cool and comfortable when you work up a sweat odour- resistant offset shoulder and side seams designed to increase comfort and minimize chafing reflective elements for...
$70.00
fit& design athletic fit is intended to be body- skimming and enhance the body in motion offset shoulder and side seams designed to increase comfort and minimize chafing reflective elements for added visibility in low- light conditions tencel™ lyocell performance fabric is designed to help you stay...
$110.00
Love that something fits tall women, is functional, comfortable, and stylish. ... Love the fit- comfortable. ... Perfect and pretty base layer great for
$75.97-$145.00
WAS: $120.00-$145.00*
we 've updated the fit of our men's classic thermal merino base layer 1/4 zip to improve functionality while also enhancing aesthetics. ... size medium center- front zipper: 10 '' ''( 25 cm) machine wash warm gentle cycle wash with like colors do not bleach tumble dry low cool iron as needed do not...
$89.97-$120.00
WAS: $120.00*
This is a great base layer for my walks to and from work. ... My husband loves them for an extra layer all fall, winter, and spring. ... Excels as a base layer, size up if you want a
5
Raymond
[ Bought on sale great value. Love the quality of Smart Wool products.
5
Stylish all around shorts
[ Only recently became aware of Smartwool, saw this quarter zip, and love it! Fits well. Looks good. Very useful base wool layer. Now a fan of Smarwool.
5
Rancher
[ Smartwool has mastered the 1/4 zip merino base layer. I 've owned these for years and they never disappoint. Once the temp is below 20 degrees, I have one on every day. Perfect weight, perfect fit.
5
LeoK
[ I recently had the opportunity to try out the Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip, and I must say, it quickly became one of my favorite pieces of outdoor clothing. First and foremost, the quality of the merino wool used in this base layer is exceptional. The fabric is incredibly soft and comfortable against the skin, and it provides excellent insulation and warmth. I was impressed by how well it regulated my body temperature, keeping me warm in colder conditions and preventing overheating during more active pursuits. The natural moisture- wicking properties of merino wool also kept me dry and comfortable throughout my outdoor activities. The 1/4 zip design of this base layer is a great feature. It allows for easy ventilation and temperature control, especially during strenuous activities when you need to quickly release excess heat. The zipper is smooth and durable, and the collar provides added protection and warmth for the neck area. I found the fit of this base layer to be spot on. The slim yet stretchy design contours to the body without feeling restrictive, allowing for a full range of motion. The sleeves are the perfect length, and the shirt stays in place even during active movements. The overall construction feels solid, with flatlock seams that minimize chafing and enhance comfort. One of the standout features of this base layer is its odor resistance. Merino wool naturally has antimicrobial properties, meaning it inhibits the growth of odor- causing bacteria. Even after multiple days of use, the shirt remained fresh and odor- free, making it an excellent choice for multi- day hikes or backpacking trips when laundry facilities may be limited. Durability- wise, the Smartwool Men's Classic Thermal Merino Base Layer is impressive. The merino wool is robust and resistant to pilling, ensuring that the shirt maintains its quality and appearance even after repeated use and washes. I appreciated that it retained its shape and did n't stretch out over time. In terms of improvements, I would have liked to see a small zippered pocket or a media port for storing small essentials or routing headphone cables. This would have added convenience for those who like to listen to music or carry small items while on the move. Overall, the Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip exceeded my expectations in terms of comfort, performance, and durability. It is a versatile and reliable piece of outdoor clothing that provides excellent insulation, temperature regulation, and odor resistance. Whether you 're hiking, skiing, or engaging in any cold- weather activity, this base layer is a worthy investment that will keep you warm, dry, and comfortable throughout your adventures.
5
PDXPirate
[ I ’ ve worn them all. But smartwool has it figured out. They are the best in the business for warmer base layers. I literally wear the crew neck with a 1/4 zip under my uniform. It provides supreme warmth, breathable base, and keeps you dry. And these are flat out durable.
$140.00
insulation, articulation and ventilation: seamlessly integrated to amplify movement and comfort during high- intensity activities ... slim fit follows contours of the body long sleeve quarter zip base layer clothing perfect for chilly weather 3d- mapped for a near custom fit and freedom of movement...
5
Steve
[ I was somewhat uncertain about this since it seemed a bit thin but decided to give it a try since the weather is now dropping below freezing. I love this and wear it almost daily. I generally wear it like a light jacket rather than a baselayer and it is just enough to take the chill off. I also tried it as a baselayer while hiking. It was fantastic. I shed layers while going up to just this and was fine at about 40 degrees. I added a vest when coming back down and not working as hard. Even though I wear it like a jacket, its not going to block any wind so use it under something else if its windy. Overall, I really like this and would 100% buy it again.
5
Klear Fish Hiking
[ Warm, lightweight, moves with your body. No winter hiker should be without. Hiked down to 3 degrees and this base layer kept me warm and dry!
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