Smartwool Men's Classic Thermal Merino Wool Base Layer — Long Sleeve Crew (Slim Fit), Fox Brown Heather, Small
Smartwool Men's Classic Thermal Merino Wool Base Layer — Long Sleeve Crew (Slim Fit), Fox Brown Heather, Small
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Smartwool Men's Classic Thermal Merino Wool Base Layer — Long Sleeve Crew (Slim Fit), Fox Brown Heather, Small

4.7 stars out of 30 reviews
(4.7)|
30 ratings

Key item features

  • Cold Weather Layer: This base layer is designed for cold weather activities, offering warmth and breathability, and is suitable for layering under ski or hiking boots.
  • Merino Wool: Constructed with midweight Merino wool, this fabric effectively moves moisture away from the skin to keep the wearer warm and dry.
  • Functional Design: Features interlock knitting for enhanced breathability, thermoregulation, and moisture-wicking, along with flatlock seams to minimize chafing.
  • Slim Fit: The base layer has a newly redesigned slim fit to reduce sag and excess fabric, optimizing it for layering.
  • Fox Brown: The product is available in a Fox Brown Heather color and a Small size.
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Current price is $109.00
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4.7 out of 5 stars
stars30 ratings30 reviews
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Showing 1-3 of 30 reviews

Jan 19, 2026
muckboots kyle
5 out of 5 stars review

Seller Verified Purchase

Wish I could own 10 of these

Purchased two sizes up from my shirt size as I didn't want a tight base layer. This is perfect. Comfortable and warm, working outside in Canadian winter weather.

International review
Review from Smartwool CA EN
Helpful?5YNVCK7ASVZ515566358328
Mar 23, 2026
Moto Joel
5 out of 5 stars review

Seller Verified Purchase

Comfy layer

I'll be using mine for skiing and chilly days on the motorcycle.

International review
Review from Smartwool CA EN
Helpful?5YNVCK7ASVZ515566358328
Jan 30, 2026
LuvtoSki
5 out of 5 stars review

Seller Verified Purchase

I would buy Smartwool products again

The 320 weight is fantastic. I have diabetic Neuropathy and using a 200 under the 320 + midlayer kept me warm all day skiing with -15°c and windy.

International review
Review from Smartwool CA EN
Helpful?5YNVCK7ASVZ515566358328