Stetson Hatteras Classic Ear Flaps Flat CapStetson Hatteras Classic Ear Flaps Flat Cap Keep your head and ears warm in style. Made of 100% wool and with a soft lining of 100% cotton, this flat cap from Stetson is bound to win you over with the high quality of its materials and craftsmanship. The real highlight of this headgear with timeless herringbone pattern is the ear flaps that come with decorative contrasting piping around the edges. These reliably protect the ears from the wind and cold.