SIGGI Womens UPF50+ Linen/Cotton Summer Sunhat Bucket Packable Hats w/Chin Cord Fabric:100%linen; Lining:18%cotton/82%polyester. Breathable and comfortable. SIZE: best fit for 56-59cm 22"-23.2" 7- 7 3/8, with an adjustable tape built inside the sweatband. FOLDABLE: packable, crushable, NO crease! Great for cruise, travel, gardening, boating or beach vacation. UPF50+: the 4" wide brim blocks most sun UV rays and provides excellent full coverage of head&face. DETACHABLE CHIN STRAP: adjustable for a better fit; won't blown off when it gets windy. It has a thin wire around the rim which helps keep the shape; Brim could be flipped up when desired. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!