 Designed for: Designed to: be worn with causal footwear for all day comfort. Coolmax® construction wicks moisture better; feet feel cooler. Thin cushioning in ball/heel for more blister protection than any other thin sock product on the market today. Stretch nylon with a flat knit arch improves fit. Contents: 86% CoolMax®, 12% Nylon, 1% Polyester |