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(300)300

Classic All Season Merino Base Layer Long Sleeve Crewneck Top

Smartwool

Current Price $100.00
Color
Color: Black
Fit:True to size.
Size
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Details & care

Engineered with the outdoor brand's Core Spun technology, this top combines the softness of lightweight merino with the durability of a nylon core to ensure comfort and longevity. Smooth flatlock seams reduce chafing and offset shoulder and side seams are designed to sit comfortably under pack straps.

  • 39" chest
  • Crewneck
  • Long sleeves
  • Smooth flatlock seaming designed to eliminate rubbing and irritation
  • 88% merino wool, 12% nylon
  • Machine wash, tumble dry
  • Imported
  • Item #10522928
  • Core Product ID 333333KU9V

Size info

  • True to size.

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Smartwool

Smartwool was launched in 1994 in Steamboat Springs, Colorado, and initially specialized in performance socks made of Merino wool. Today the company continues to push the boundaries of Merino to create smarter, more capable outdoor apparel from head to toe. Built on the desire to be comfortable outside, Smartwool exists to help people play, live and laugh in the great outdoors.

Reviews

(300)3004.7 out of 5
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Most helpful positive review

Oct 9, 2026

My husband loves Smartwool base

My husband loves Smartwool base layer shirts. This is the second one I purchased. Highly recommend.
Mary B.
Reposted from Smartwool

Most helpful critical review

Nov 15, 2024

Super itchy and uncomfortable

I know they added nylon to cut cost and make it more durable, but it has made this top so itchy I can't wear it
JENNIFER W.
Reposted from Smartwool
Smartwool response
Thank you for sharing your experience with us. We're sorry to hear this product didn't work out for you. Thankfully, all of our products are backed by our Go Far. Feel Good.:tm: Guarantee. You can find all the details about our Guarantee here: https://www.smartwool.com/discover/smartwool-guarantee.html

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5 stars86%
4 stars5%
3 stars4%
2 stars3%
1 star2%
Oct 9, 2026

My husband loves Smartwool base

My husband loves Smartwool base layer shirts. This is the second one I purchased. Highly recommend.
Reposted from Smartwool
Mary B.
Sept 21, 2026

Best shirt!

[This review was collected as part of a promotion.] The Smartwool tee shirts (short sleeve/ long sleeve) are the best. Ever since my 24 year old son told me the Smartwool merino shirts were his favorite, I’ve been buying them for him for special occasions. He’s always super appreciative because he knows I’ve given him something of great quality and even though the shirts cost more than the average shirt, the investment is worth it. I feel happy giving him something he truly wants.
Reposted from Smartwool
Erin F.
Aug 24, 2026

Super comfortable highly versatile shirt

Super comfortable highly versatile shirt I never travel without. When traveling for days at a time with no laundry this shirt is an absolute must
Reposted from Smartwool
Andy
Aug 23, 2026

Great all around outdoor shirt.

Great all around outdoor shirt. Great in a variety of temperatures and has been used a base layer or my only layer.
Reposted from Smartwool
Chilo E.
Aug 20, 2026

All -Season base layer

Light weight and comfortable. Perfect as base layer for golf in coastal Pacific Northwest.
Reposted from Smartwool
Eric
Aug 18, 2026

best shirt ever

the best shirt ever. if you are planning on drying it, be sure to size up.
Reposted from Smartwool
ednann n.

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