Nothing says "go far. feel good." like Smartwool's updated Hike Light Mid Crew socks (formerly known as PhD Outdoor)—designed to help you hike how you like comfortably. This hiking sock offers a women's-specific fit andfeatures Smartwool's Indestructawool technology for even more durability, Smartwool's 4 Degree Elite Fit System for a dialed, performance-oriented fit, and Smartwool's Virtually Seamless toe for less pressure and more comfort. Light cushion on the bottom of the sock also helps add in-shoe/boot comfort on rough trails.