The Women's PhD Run Ultra Light Micro socks are designed to keep your feet cool, dry, and happy all day long. Featuring Smartwool's Indestructawool technology, this sock is built to last. The Achilles tab helps prevent your socks from slipping into your shoes while the body-mapped mesh zones offer premium breathability. Smartwool also included their Shred Shield technology to prevent wear from your toes. This race-ready sock is designed with a women's specific shape with a narrower heel and slimmer fit. Go farther, more comfortably in the Smartwool Women's PhD Run Ultra Light Micro.