Home Prefer Unisex Adjustable Quick Dry Sun Hat Running Cap Outdoor Travel Hat Imported Unisex design, fit to adult average head circumference from 21.65" to 23.5"(55-60cm) Polyester pongee fabric, light weight & quick-dry & breathable & durable Mesh panels keep cool airflow Stiff brim to protect you from sun block Great for outdoor sport activities or daily wear