Feetures! offers a vast array of performance running socks, but the Elite Ultra Light No Show Tab Sock is the thinnest, lightest sock in the Feetures! line. Ultra-thin construction keeps the breathable synthetic material close to your foot like a second skin, Lycra elastic bands support the area underneath your arch, and details like the no-seam toe and anatomical, left-right fit ensure long-term comfort. This sock is a dream come true for the road runner who can"t stand to run sockless in a barefoot shoe, or the distance runner who prefers the absolute closest fit with his or her shoe. Product FeaturesMaterial: 79% iWick nylon, 13% polyester, 3% LycraHeight: below ankleClaimed Weight: lightweightRecommended Use: road running, trail runningManufacturer Warranty: lifetime