PhD® Run Ultra Light Micro Socks - Light Gray woman's shoes Non-marking and self-cleaning BioGrip chemical

Non-marking and self-cleaning BioGrip chemical and slip-resistant outsole

From the road to the trail

middle and outer parts of the foot

Durable hand-lasted rubber with a four-way stretch inner bootie

The Sealtex® waterproof bootie construction keeps the interior dry

PhD® Run Ultra Light Micro Socks - Light Gray woman's shoes Non-marking and self-cleaning BioGrip chemicalSmartwool has put all of their smarts into these new and improved Women's PhD Run Ultra Light Micro socks. You won't break your stride, thanks to Indestructawool technology designed for added durability and an Achilles tab designed to help prevent sock slippage. And by adding brand new Shred Shield technology to the running socks, the wear and tear from toes is reduced, helping you push toward your finish line and achieve higher mileage.