76% Nylon, 24% Spandex * Turbo charge your legs. Increased delivery of oxygen-rich blood gives you increased speed, power and endurance, while reducing the buildup of lactic acid. * Stay protected. Permanent antimicrobial treatment, microfiber moisture wicking, and UPF 50+ sun protection help you stay dry and comfortable, dry, and performing at peak temperature in any conditions. * Cold machine wash, gentle cycle, with like colors. Do not bleach, iron, or tumble dry.