Includes (2) Cooling Towels - Premium Tech Knit material. Lightweight u0026amp; BreathablenCools Instantly When Wet to 30 Degree below average body temperaturenWicks away sweat. Promotes moisture cirulation. Regulates evaporation to help coolnUPF 50 Sun Protection. Chemical-free, Reusable u0026amp; Machine Washable. 92% Polyester u0026amp; 8% SpandexnTo activate cooling technology: Get it soaked, wring out excess and snap three times. Typically cools for up to 2 hours when wet. To reactivate, simply re-soak and re-snapnThe Enduracool Instant Cooling Sportswear by Mission cools when soaked with water, wrung out, and then snapped in the air to activate the cooling properties. The technology 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.Cools Instantly When Wet. 92% Polyester u0026 8% Spandex