A baseball cap of Squishee® looks good on everyone. Elasticized inner band, adjustable head size tab in back. Available in S/M and M/L. Lightweight and packable. Blocks 95% UVA/UVB rays. 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 Brim span: 3"