Omni-Wick™ fabric pulls moisture away from the body so sweat can dry quickly Rated at UPF 40, Omni-Shade™ fabric blocks UVA and UVB rays to help prevent sunburn and long-term skin damage Antimicrobial treatment helps prevent odor in fabric Venting at back shoulders promotes airflow to keep you cool Roll-up tabs keep sleeves out of the way Zip pocket secures small items