For a sock that has it all, look no further: the PhD Outdoor Medium Crew offers fit, comfort and durability wrapped together in one smart sock. Featuring Indestructawool(TM) technology for ultimate durability in high wear areas, the 4 Degree(R) elite fit system for a dialed fit and our signature Virtually Seamless(TM) toe for extraordinary comfort in any trail shoe. Medium cushioning provides impact protection and ultimate comfort on the trail. Virtually Seamless(TM) toe. 8.5" overall height. Sock Height: Crew. Made in USA of Imported Yarn: 64% Merino Wool, 34% Nylon, 2% Elastane.