NYFASHION101 Women's Dotted Band Two Tone Weaved Trim Floppy Sun Hat One size fits most for this summer sun hat. This hat is made with 88% polyester and 12% paper. The brim measures 4.0" to keep the face shaded. Internal sweatband to keep head cool. This sun hat blocks 88% UVA/UVB rays, with UPF 50+ as well. Simple and hassle free accessory for the day out!