Outside fabric: 100% Natural Paper Braid Straw Woven. High quality paper materials and craftsmanship. Breathable and comfortable. Free size: With an adjustable tape built in sweatband. Hat Circumference 54-57.5cm/21.2-22.5" ; Brim 7.5cm/3" Elegant and lightweight: Super cute and soft. Our 100% paper braid design has a 3" wire-edged brim with a wide ribbon band and an internal drawstring for perfect fit. The paper braid is high-quality, but also breathable, helping keep you cooler on hot days. UPF 50+ Sun Protection: Block 97.5% of the sun's harmful ultraviolet rays to keep your skin healthy and beautiful! Our fabric is rated at an unbeatable UPF 50+ (Ultraviolet Protection Factor). Whether traveling abroad, enjoying a cookout with friends, or spending a day on the water, discover the RIONA Hat for the most fun and fashionable sun protection! Foldable and crushable: Can be easily carried inside your handbag or beach tote, packable and super convenient to carry and absolutely save lots of space. A wonderful hat for wearing while gardening, at the beach, pool, park, camping, hiking, church functions, race day events, even out in your own back yard or any outdoor activities.