Coolibar UPF 50+ Unisex Matchplay Golf Hat - Sun Protective 100% Polyester UPF 50+ - protects against 98% of UVA and UVB rays Lite SUNTECT&reg;: Ultra-soft with a cotton like feel, lightweight, breathable, quick dry performance Approx. circumference: 22 3/4 inch (S/M); 23 5/8 inch (L/XL); 24 5/8 inch (XXL); Brim: 4 inch (front), 3 inch (sides) Elastic drawcord at back of crown for adjustable fit, internal sweatband, with lightweight foam brim; Easy care: hand wash, line dry; Imported Recommended for when you want to keep your cool and stay UPF 50+ sun protected while picking up the pace outdoors