This bucket surf hat is a unisex design, one size adjustable 21.7"-23.6". Sun hat is made of quick dry nylon fabric, brim 2.4", crown height 3.1", and lightweight 2.1oz. Feature reflective strip on the back, adjustable chin strap, cotton moisture-wicking sweatbands, and breathable mesh panels make it well-ventilated. UPF 50+ sun protection, great men's or women's surfers hat for surfing, boating, water sports, or any outdoor activities! Qty over 5k by ocean shipping.