Sun hat engineered with UV protection UPF 80+ – blocking over 99.99% of harmful rays for worry-free outdoor adventures. The 3.5" (9cm) wide brim shields your face, neck, and ears. Sun hat revolutionizes outdoor styling with its hidden ponytail hole. Securely thread braids, buns, or high ponytails through the discreet opening to keep hair off your neck during sweaty hiking sessions or beach time.