Hat offers excellent UV protection with a UPF 50 rating Wide stiff brim keeps the sun and rain off your face and neck Closed cell foam in the top makes hat float if it goes overboard making it a great companion for boating too Hidden velcro pocket in the crown for storage of I D hotel key or money Soft comfortable Hydrofil-« band wicks away perspiration Special cord wraps under chin and back of head to keep hat in place in high winds Machine washable will not shrink repels rain and mildew