Product InformationPulled from the archives: the iconic Duckbill Cap, a style favored by Ernest Hemingway and other legendary sportsmen. Its long 4 bill provides maximum sun protection, and the low-profile four-panel design is packable for worry-free transport. Made of hardy 11.5-oz. dry finish Tin Cloth, with an adjustable webbing strap in the rear. Men's Duckbill Cap - Khaki