Solbari UPF 50+ Womens Outback Sun Protection Sun Hat - UV Protection, Sun Protective Super comfortable and lightweight; Solbari's outback sun hat is inspired from the Australian outback to provide great protection from the sun. It has a sturdy brim and is accredited with the highest rating in the world for fabrics of UPF50+. It blocks UVA and UVB rays. Brim length with compliant with the Australian Cancer Council standards. Brim Length 3.5'' at front and 7.5'' flap at the back. Sturdy and lightweight (weighs less than 4oz). Ideal for the outdoors, gardening, hiking and travelling. Drawstring at the back to adjust size. Comes in 3 sizes. Head circumference (Small up to 22'') ; (Medium up to 23'') ; (Large / Xlarge up to 24''). Designed, tested and rated UPF50+ in Australia for the highest sun protection. Mesh not rated. Hand wash. Accredited with a UPF50+ rating, it blocks more than 98% of UVA and UVB rays Sturdy and lightweight (weighs less than 4ozs) Integrated sweatband for improved comfort Drawstring at the back to adjust sizing and make the hat smaller if necessary Removable chin strap with clips on the sides Water and stain resistant