SIGGI Womens UPF 50+ Cotton Linen Packable Bucket Sun Hats w/Chin Cord Summer Fabric:55%linen,45%rayon;Lining:20%cotton/80%polyester. Free size, with a built-in adjustable string at back. Best fit for 55-58cm 21.6"-22.8" 6 7/8 - 7 1/4. UPF 50+: this sun bucket hat has passed UPF 50+ test,can block 97.5% or more of sun UV rays. The brim measures 3.5" in length, is wide and long enough to shade forehead, eyes and cheeks from sun uv ray. Absorbent sweatband will keep you cool and comfortable in summer. The boonie cord hat is perfect as a fishing/hiking/beach-vacation hat for women. The shape looks really cute and adorable. When delivered by seller,it will be fulfilled within 2 days after being ordered. Usually it takes 8-12days for you to receive the item after delivery. To make sure it is in good condition when arriving you, it will be well packed in a cardboard box before delivery.