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MERINO UNDERWEAR

SHOP MEN'S UNDERWEAR

PhD Socks

PhD® Outdoor Socks

Discover PhD® Socks
Image of ultra runner Smartwool athlete Darcy Piceu

Balancing What Matters

As a pro ultra-runner with a day job and single mom, Smartwool Athlete Darcy Piceu strives to balance it all.

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A group of three hiking in canyonlands

Staying Cool in Merino Wool

Moisture management, breathability and odor resistance are just a few reasons why Merino wool is perfect for warm weather.

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USA Made

Made in the USA

We’re proud to make most of our socks right here in the USA.

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Group hiking through canyon floor

Looking Up

What can nature teach us when we use our senses? Take a journey through Utah’s canyon country to find out.

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