For a sock that has it all, look no further than the PhD Outdoor Medium Pattern Crew by Smartwool. This sock offers fit, comfort, and durability wrapped together in one smart design. It features Indestructawool technology for ultimate durability in high-wear areas. Smartwool’s 4 Degree elite fit system provides you with a dialed-in fit. A signature Virtually Seamless toe gives extraordinary comfort in any trail shoe, hiking boot, or casual footwear. Medium cushioning provides impact protection and ultimate comfort when you’re out on the hiking trail.