This Wekity Wide Brim Sun Protection Finshing Hats Sun Cap with Windproof neck Flap Travel Beach Hat for men and women with Flaps (Flaps are removable), Complete Sun Protection & Back flap provides great protection from the sun Hat Circumference Approx 21.6"-23.6" ; Hat Brim wide about 3.6 inches,Unisex Design, Adjustable Fit To Average Adult Head. FEATURES: Wekity Finshing Hats Sun Cap Sun Protection Waterproof, windproof, breathable, quick-drying, ultra-light;Suitable for the crowd: fishing enthusiasts, beach,sailors, climbers, camping activities,boating ,safari and gardening ,exploration personnel . WINDPFOOG Water resistance FABRIC: Mesh,absorb sweat, breathable.Dark cap eyebrow, absorb strongly scatter light, eye protection ,The back of the hat for the elastic fast buckle, Windproof design with adjustable chin strap ensures the hat stays put even in windy conditions .Prevent dust, pollen, saliva and spray ! Light weight Water resistance Nylon is great for all types of outdoor activities Fine collapsibel easy to carry UPF 50+ Windproof /Water resistance / Quick-drying