Fish UV 50+ Protection Outdoor Multifunctional Flap Hat Neck Protection Cap for Fishing Hiking Garden Work Outdoor Activities Unisex Sun Cap: Perfect For Various Outdoor Activities, Such As Hiking,Fishing,Camping,Hunting And outdoor work. Flap: 360 degrees azimuth Flaps, anti-mosquito design(Flaps are removable).Adjustable Draw String/Adjustable Chin Strap. Helps Keep The Hat On Your Head On Windy Days. Sun protection: UPF 50+ UV ray protection. Venting mesh On The Sun Hat Make Your Head Feeling More Breathable. Alterable style: After You Fold Up The Side Brim And Buttoned,It Could Convert To SAFARI Style.You could Wearing It In Different Style As You Like. Material: Quick-drying fabric. Hat Brim:3.15 inch. Head circumference:21.5 inch--25.9 inch Adjustable Size.