Mission Enduracool Instant Cooling Towels Instant cooling against the skin for hours, without feeling wet! The Mission EnduraCoolATM Instant Cooling Towel is made from a proprietary performance fabric that instantly cools when soaked with water, wrung out, and then snapped in the air to activate the cooling properties. The patented technology, Powered by CoolcoreATM, works by absorbing moisture and perspiration into the fabric core where the unique radiator-like fiber construction circulates water molecules and regulates the rate of evaporation to create a prolonged cooling effect. Mission Enduracool Instant Cooling Towels feature: When wet, cools instantly to 30A F below average body temp Soft, breathable fabric feels comfortable against the skin Stays cool for up to 2 hours when wet Absorbs sweat when wet Use on neck, head or any other hot zones Portable cooling -does not require refrigeration When not activated for cooling, the lightweight towel wipes away water and sweat Provides a great way to keep dry during intense workouts UPF 50 protection from the sun Lightweight, chemical-free Reusable and machine washable Towel size: 12 1/4" x 33" Constructed from 90% polyester, 10% nylon Instant Cooling Towel. Feel Cool And Go Harder!