DeFeet Aireator 2-3" Cuff Socks White XL PairThe original air flow design sock Very thin sock without much cushion, excellent for use with close fit shoes Super light, low bulk, and fast drying Aireator mesh on top of sock helps air flow and keeps your feetcomfortable No slip cuff helps keep the sock up 60% Nylon, 39% CoolMax, 1% Lycra Made in USA TECH SPECS Color White Fabric Technology Aireator mesh Size XL Cuff Height 3 Primary Color White Core No