No Need Freezer, Ice, or Electric Providing Quick and Long-lasting Cooling Reducing Surface Temperature by up to 30% 100% Natural Cooling Made from High Performance Soft Material Reusable and Durable Put on the human body can quickly absorb sweat and rapid cooling. Suitable for running, sports, camping, outdoor activities, medical treatment or daily life etc. When using for the first time, please wash the towel in the water. If the towel not in use, It becomes dry and hard. And when re-use, please soak in water. Specifications: Material: PVA