Columbia Men's Tamiami II Long Sleeve Shirt 100% Polyester Ripstop Imported Omni-Wick pulls moisture away from the body so sweat can evaporate quickly Omni-Shade UPF 40 sun protection Antimicrobial treatment protects this product from bacterial growth, quick Dry. Vented Roll-up sleeves with tab holders Rod holder Omni; Wick Rip stop: 100% Polyester Omni-Wick Advanced Evaporation Omni-Shade UPF 40 sun protection Intended to protect the garment from odor Caused by bacteria Roll-up sleeves with tab holders