Stetson Men's No Fly Zone Nylon Cap with Sun Shield Khaki Hat Nylon^Polyester Imported UPF 50+ sun protection. Six-paneled baseball cap with sun shield. Front brim with back neck cover. Don't let the sun's rays phase you with this hat from Stetson&reg;! Adjustable drawstring for customizable fit. Lined interior. Interior sweatband for added comfort. 71% nylon, 29% polyester. Spot clean only. Imported. Measurements: Circumference: 23 in Brim: 3 1&frasl;2 in Product measurements were taken using size LG/XL. Please note that measurements may vary by size.