E4hats Water Repellent Microfiber Golfer Hat - White Polyester Made of 100% polyester. S/M, L/XL, XL/2XL, and 2XL/3XL are available with elastic band inside. Crown measures 3 1/2 inches deep, with solid band. Brim measures 2 1/4 inches wide. Soft, thin and water repellent material.