Jeanne Simmons UPF 50+ Cotton Paper Braid Large Kettle Brim Hat - Black 100% Polyester Made of 65% paper straw, 15% polyester and 20% cotton. One size fits most with size adjustable tie, fitting up to 7 1/4. Crown measures 4 inches deep, 4 1/2 inches wide brim. Soft, thick, packable and crushable material. UPF 50+ Excellent UV protection, blocks UVA and UVB.