Two Tone Large Bow Fashion Sinamay Hat - Lime Turquoise W26S30B Straw Made of 100% sinamay straw. ONE SIZE fits most with size adjustable string inside, fitting up to 7 1/4. Crown measures 3.5 inches deep, slanted crown, elastic chin string. Brim measures 5 inches wide, downturned. Thin, stiff and light mesh material.