100% Polyolester Imported ONE SIZE FITS MOST: Casual style unisex sun hat. Hat size available from 22-23inch(58cm). SUN PROTECTION: UPF 50+ excellent sun protection. Provide you better protection from sunshine and damaging rays for face and neck. ADJUSTABLE & BREATHABLE: Double fabric design, sweat absorption. Adjustable Chin Strap with anti-drop button. FOLDABLE&PORTABLE: Can be folded into a small one, which is very convenient to put it in your bag, The hat weight just 0.15lb that is extremely portable for people. PERFECT FOR HIKING OR FISHING : Washed look gives it a tactical feel. Provides all day comfort and can be worn through every season for a fashionable way to protect from sunlight. Allows you to see long distances better by providing adequate shade.