Smartwool Athlete Edition Run Mountain Print Crew SocksSmartwool asked pro athlete, Rob Krar, to help them create the ultimate running sock based on his experiences and insights. This purpose-built sock features Shred Shield(TM) technology to reduce wear from toes, activity-specific minimal and targeted sole cushioning, and a new malleolus ankle cushion designed for protection on the most rugged trails. With a colorful mountain design, you'll be running your best and looking your best, too.Sock Height: CrewRob Krar signature sockMinimal and targeted sole cushion; Achilles heel cushionMalleolus ankle cushion for protection on the most rugged trailsVirtually Seamless(TM) toe for enhanced comfort7.5" overall height360Adeg print technologyMade in USA of Imported Yarns: 57% Merino Wool, 38% Nylon, 4% Elastane, 1% Polyester