Coolibar UPF 50+ Men's Ultra Sport Hat - Sun Protective 100% Polyester Hook and Loop closure UPF 50+ - protects against 98% of UVA and UVB rays Travel friendly, crushable and packable; Extra-long drape shields your neck and wraps around for lower face protection; Adjustable Velcro closure for a custom fit; Laser perforation on front of drape for breathability when closed Lite SUNTECT: Ultra-soft with a cotton like feel, lightweight, breathable, quick dry performance; Approx. circumference: 24 3/8 inches; Brim: 4 inches Easy care: hand wash cold, line dry; Imported The Coolibar ULTIMATE COVERAGE Collection indicates styles used to cover the majority of your skin with UPF 50+ protection. No one piece of clothing can prevent sun damage, but by combining pieces from the ULTIMATE COVERAGE Collection, you can effectively cover 90&percnt; of your exposed skin while blocking 98&percnt; of UVA/UVB radiation.