Truly at home on technical trails, the Women's Ultra Traction is for athletes seeking protection, comfort and superior energy return.

The Women's Ultra Traction is built for trail-athletes seeking a precise fit and responsive underfoot experience.

Responsive, cushioning running shoes offer durable, lightweight performance and superior protection so you can go longer and push beyond your personal limits.

For young and progressive millennial explorers, these supportive and breathable running shoes deliver exceptional cushioning and stability on the trail.

Our best fitting, most advanced run socks yet, we packed years of testing, prototypes and running smarts into these socks. Featuring Light Elite cushioning in the ball and heel of the foot for ultimate shock absorption with minimal in-shoe volume, men’s-specific mesh ventilation zones and a Virtually Seamless™ toe.

We've put all of our smarts into these new and improved Women's PhD® Run Ultra Light Striped Micro socks. You won't break your stride, thanks to our Indestructawool™ technology designed for added durability and an Achilles tab designed to help prevent sock slippage. And by adding our brand-new Shred Shield™ technology to our running socks, the wear and tear from toes is reduced, helping you push toward your finish line and achieve higher mileage.