Stay cool when the temperature rises with the MISSION Cooling Tapered Headband. This headband is designed with lightweight and stretchy chemical-free fabric that cools to 30° 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 stretchy performance fabric Cools to 30° 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