Teko Men's EVAPOR8 Light Low Cross Training, Cycling and Running Socks 76% Recycled Polyester / 21% Nylon / 3% Elastic Made in US Luxurious ultrafine fibers dry & evaporate moisture quickly,eVAPOR8 fiber regulates your temperature Anatomical fit - smooth, seamless & snug Performs best in warm, hot & humid conditions Extremely durable Ultralight/Light/Medium* IMPAX Zoned Cushioning System for optimum comfort, Lifetime tekoFIT Guarantee