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Our classic Jester Backpack had a padded laptop sleeve, simplified organization, and it can stand up completely unsupported. It also ...

When you need a little more warmth without the bulk, layer up with our Men's Merino Sport Fleece 1/2 Zip. Our Merino Sport Fleece combines a durab...

The OOahh Sport Slide features revolutionary OOfoam™ technology that absorbs 37% more impact than traditional footwear foam materials to reduce the...

The OOcloog clog features revolutionary OOfoam™ technology that absorbs 37% more impact than traditional footwear foam materials to reduce the stre...

The OOlala sandal features revolutionary OOfoam™ technology that absorbs 37% more impact than traditional footwear foam materials to reduce the str...

Experience durability at its peak with the PhD® Outdoor Light Crew. Featuring Indestructawool™ technology, a patent-pending wool-based durability ...

An ankle-high powerhouse, the PhD® Outdoor Light Mini is made for mileage. Great for long summer treks, it combines support, stretch, and recovery....

An ankle-high powerhouse, the PhD® Outdoor Light Mini is made for mileage. Great for long summer treks, it combines support, stretch, and recovery....

An ankle-high powerhouse, the PhD® Outdoor Light Mini is made for mileage. Great for long summer treks, it combines support, stretch, and recovery....

When you 've got lots of miles to cover but only want the minimum between your foot and boot, the PhD® Outdoor Ultra Light Mini is the perfect trai...

When you're out there, the last thing you want to think about is your feet. That's why we made the PhD® Pro Medium Crew with Indestructawool™ techn...

Just because a river gets a lot of pressure, doesn't mean you have to. Our PhD® Pro Wader sock was designed to combat pressure in deeper water to h...

For the guy who's not afraid to be bold. The manly answer to our always popular striped socks offer a support brace and cushioned foot for all day...

We worked with athlete Rob Krar to create the ultimate ultra-run sock. This purpose-built sock features Shred Shield™ technology to reduce wear fr...

We partnered with Conrad Anker to develop the PhD®® Pro Approach Mini that's designed to take you to the top. It's made with premium yarn to enhan...