Classic Thermal Merino Base Layer Crew Men's S26

Classic Thermal Merino Base Layer Crew Men's S26 - View 3

Classic Thermal Merino Base Layer Crew Men's S26 - View 4

Classic Thermal Merino Base Layer Crew Men's S26 - View 5

Classic Thermal Merino Base Layer Crew Men's S26 - View 6

$85 ~~$125~~ In stock

Awesome midweight 100% Merino wool crew neck base layer from Smartwool. Great next-to-skin comfort in colder conditions.

Details:

100% Merino Wool fabric with an interlock knit
Crew neck style
No top shoulder seams
Flatlock seam construction for comfort
Soft next-to-skin comfort
Odor resistance
Machine washable and dryable
9.74 oz (276g)

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Michael ★★★★★ Oct 22, 2026

Put this on for my morning hike and forgot I was wearing it—that's how comfortable the merino wool feels against the skin. The interlock knit is snug without being restrictive, and it kept me warm once the wind picked up.

Eli ★★★★★ Oct 21, 2026

I was skeptical about wearing wool all day, but the crew neck sits flat under my work jacket and the 100% Merino interlock knit breathes just right on a chilly morning walk. No itch, no bulk, just steady warmth that’s honestly made me retire my old cotton layers.

Benjamin W. ★★★★★ Oct 19, 2026

Wore this on a freezing morning hike and the crew neck sat perfectly flat under my shell, no bunching at all. The 100% merino interlock knit kept me warm without any itch, even after four hours of sweat. It's my new go-to for anything below 40 degrees.