Freeski Socks
PhD Pro Freeski
Approach Socks
PhD Pro Approach
Outdoor Socks
PhD Pro Outdoor
Mountaineer Socks
PhD Pro Mountaineer
Wader Socks
PhD Pro Wader
PhD Pro Socks

Made for

Pros expect the best from their gear.
So should you.

Designed in partnership with our athletes, the PhD® Pro line of Merino wool high-tech socks features activity-specific sock technology designed to elevate your every adventure in the outdoors.

Freeski sock
Approach sock


We’ve partnered with iconic athletes like Conrad Anker and Angel Collinson to create our most advanced, high-tech socks ever. They’re designed with athlete insights to help elevate each sock’s comfort, fit, and durability so you can experience more on the trail, slope, stream, and mountain.

Freeski Socks Approach Socks
Angel Collinson

Angel Collinson

Pro Freeskier

We worked with Angel to create our most high-tech sock for skiing ever. They feature new insight-driven sculpted heel and ankle cushioning to help lock your foot in tight-fitting boots without adding bulk. These comfortable, durable wool socks are designed to handle backcountry touring, resort shredding, and steep descents.

The cushioning layout was important to me because you want it tight in the right places and not too tight in the places where you don’t have enough room.

Conrad Anker

Conrad Anker

Pro Alpinist

We worked with Conrad to develop the PhD® Pro Approach sock. It’s designed to help make approach shoes work better with sculpted cushioning and Merino comfort. These high-tech socks offer enhanced fit and comfort while still expertly handling demanding approaches on the way to your climb.

Climbing gear is a life support system. Your gear’s got to work for you. So that same mindset is what we used when we started developing this sock.

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100% Smartwool guarantee Socks made in the USA Gender specific fit

Each category of PhD® Pro socks uses unique, activity-specific, athlete-driven insights to create a platform you can rely on for your most epic adventures. They combine our sock expertise and innovation with knowledge from top athletes—creating durable socks capable of supporting your every step in the wild.

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