SIZE: Medium - Large best fit for 22.4 -23.6 ,57-60cm ;Large - X-large best fits for 23.6 -24.8 ,60-63cm ;X-Large - XX-Large best fits for 24.8 -26 ,63-66cm. has an elasticized locking draw cord at back to adjust for head size. Great Ventilation - Mesh Crown & 4 Eyelets keep your head cool.The outdoor sun hat can flop down the brim to be a boonie hat; button brim up to be a stylish cowboy hat. Packable & Lightweight: Crushable fabric can easily be packed for travel,could even be tucked into your POCKETS.Great for beach, pool, fishing, hiking, camping, walking, hunting, gardening or any outdoor sports and activities. WINDPROOF & SHOWERPROOF - adjustable chin strap holds hat in place even in windy or rainy conditions.will NEVER be blown away! High quality waterproof nylon material. UPF 50+ Sun Protection: 3 inches wide brimmed hat could Block 97.5% of the sun's harmful ultraviolet rays.Our fabric is rated at an unbeatable UPF 50+ (Ultraviolet Protection Factor).These boonie hats are perfect for people who are engaged in outdoor recreation such as fishing, hunting, camping, hiking and many more. With this hat, you can spend more hours in your garden cutting the grass. This time, don't be afraid of the sun and enjoy nature. SIZE: Medium - Large best fit for 22.4"-23.6",57-60cm ;Large - X-large best fits for 23.6"-24.8",60-63cm ;X-Large - XX-Large best fits for 24.8"-26",63-66cm. has an elasticized locking draw cord at back to adjust for head size. Great Ventilation - Mesh Crown & 4 Eyelets keep your head cool.The outdoor sun hat can flop down the brim to be a boonie hat; button brim up to be a stylish cowboy hat. Packable & Lightweight: Crushable fabric can easily be packed for travel,could even be tucked into your POCKETS.Great for beach, pool, fishing, hiking, camping, walking, hunting, gardening or any outdoor sports and activities. WINDPROOF & SHOWERPROOF - adjustable chin strap holds hat in place even in windy or rainy conditions.will NEVER be blown away! High quality waterproof nylon material. UPF 50+ Sun Protection: 3 inches wide brimmed hat could Block 97.5% of the sun's harmful ultraviolet rays.Our fabric is rated at an unbeatable UPF 50+ (Ultraviolet Protection Factor).These boonie hats are perfect for people who are engaged in outdoor recreation such as fishing, hunting, camping, hiking and many more. With this hat, you can spend more hours in your garden cutting the grass. This time, don't be afraid of the sun and enjoy nature. Clothing feature Waterproof Fabric content 100% Nylon Hat style Sun Season Summer Weather Sun Fastener type Drawstring Color 00702_Khaki Style Sport Brand TOP-EX Clothing size L Pattern Solid Print Gender Male Clothing size group Men Age group Adult Fabric care hand wash; spot clean