3 layer cooling mask designed for breathability when you are active. Made from an outer layer of 90% polyester & 10% spandex and 2 inner layers of 100% poly cotton. Washable and reusable time and again. For an extra comfortable fit two black elastic over ear straps are adjustable in length using a simple slide mechanism. A squeeze tight, secure nose clip provides better protection against the possible transfer of airborne particles. The mask is a non-medical device but will protect against solid particles and droplets. Hand washing in a mild detergent is recommended after each use, rinse well and dry before using again.