100% Polyester Hand Wash Only UPF 50+ - blocks 98% of UVA/UVB rays FABRIC: Packable, tightly woven grosgrain ribbon with self cloth chin strap; Moisture-wicking terry sweatband for comfort; Travel friendly packable and crushable FEATURES: Broad 3 3/4 inch brim for excellent face and neck protection; Circumference: 22 1/2 inches; Hand wash, line dry; Imported RECOMMENDED FOR: when you want to pack light and travel in style - technical sun protection to take you from sightseeing to a café lunch NOT RECOMMENDED FOR: swimming, not chlorine and salt water resistant or water repellent Coolibar UPF 50+ Women's Shelly Shapeable Travel Sun Hat Sun Protective - BYBZMLQK8