Exceptionally soft and comfortable, they're made of breathable, fast-drying CoolMax, with the patented Wick Dry Health System that wicks moisture away to keep feet dry and blister-free. X-Static silver-coated nylon elminates foot odor naturally, and the Lycra 3D knit helps them keep their shape wash after wash. Has a cushioned insole and "no feel" toe seam for added comfort. 68% Coolmax poly, 28% nylon, 2% X-Static nylon, 2% Lycra spandex.