The broader brim balances medium to large size faces while providing maximum shade for the face, neck and ears. Perfect for the beach, tennis, golf, gardening or any outdoor activity. Head size adjusts with Velcro® closure in back. Inner-terry head pad detaches for washing. Signature logo punctuates the back. Packable. Blocks 95% UVA/UVB rays. Look your best while enjoying the sun! Independent testing in accordance with AATCC (American Association of Textile Chemists and Colorists) test methods have determined this product??¢s effectiveness for blocking ultraviolet radiation as well as UVA/UVB radiation. This product was awarded the highest rating of 50+ UPF by independent testing. To learn more about AATCC testing, go to www.aatcc.org. As with any open top visor this product does not protect the top of the head from sun exposure. Brim span: 3.75"