Stay cool when the temperature rises with the MISSION Cooling Performance Hat. This adjustable hat is designed with lightweight chemical-free fabric that cools to 30deg below average body temperature in less than thirty seconds when activated with water. It stays cool for up to 2 hours at a time and reactivates with more water. DESIGN Lightweight performance fabric Hook and loop tabs allow for adjustable fit Cools to 30deg F below average body temperature in less than 30 seconds when activated with water Stays cool for up to 2 hours Chemical free UPF 50 sun protection One size fits most Machine washable Materials: 100% polyester