YX 360 Degree Protection Outdoor Riding Hat/ Sun Hats /Fishing Hats /Fisherman's Caps, Breathable and Quick-drying, Multi-functional Plain cotton farbic material ,soft,like the silk, breathable and comfortable,Free Size:58cm, adjustable belt Multifunctional outdoor hat,sunscreen,anti-mosquito,sunblock,climbing hat give your health travel escort Includes high quality hat band for superior comfort and fit,easy to carry 3CM widening sweatbands, to prevent sweat into your eyes UPF 50+ - Block 97.5% of the sun's harmful ultraviolet rays to keep your skin healthy and beautiful! Our fabric is rated at an unbeatable UPF 50+ (Ultraviolet Protection Factor) by the Australian Radiation Protection AgencyThe inner hat comprises a lightweight mesh for excellent ventilation and comfort,the outer shell material promise the it will quick-dry and excellent sunblock