90% Polyester, 10% Nylon towel dimensions: 12.25" x 33” FEATURES: - Proprietary technology cools to 30 degrees below average body temperature when wet - Reusable and machine washable, dries soft - Durable tube packaging with snapable hang feature - UPF 50 protection from the sun, provides chemical free cooling - When wet, stays cool for hours - When dry, stays soft and absorbent - Chemical-free