The BloqUV Long Sleeve Mock Zip Shirt nbsp;has a UPF 50 plus rating, blocking out 98 percent of the sun's harmful rays. Available in fresh vibrant colors to match any of your outdoor activities. Made of quick dry fabric. Functional zipper pocket. Reflectice trim. Flat seamed for all around comfort. All BloqUV fabrics are tested in accordance with the American Association of Textile Chemist and Colorist AATCC. BloqUV provides a minimum UPF 50 blocking 98 of sun's rays. BloqUV sun protective clothing that is fashionable and functional.