Jeanne Simmons UPF50+ Crownless 4 Inch Wide Brim Visor 100% Cotton Made of 65% paper straw, 15% polyester and 20% cotton. ONE SIZE fits most, fitting up to 7. Crown measures 1 1/2 inches high, with elastic terry sweat band inside. Brim measures 4 1/2 inches wide. Packable and crushable, excellent UV protection - UVA and UVB.