Columbia Sportswear Women's Sun Goddess II Long Sleeve Shirt Omni-Wick Ripstop 100% polyester Imported Omni-Wick Shirt Omni-Shade UPF 40 sun protection. Antimicrobial treatment protects this product from bacterial growth Roll-up sleeves with tab holders Omni-Wick Advanced Evaporation Omni-Shade UPF 40 Sun Protection Antimicrobial, Intended to Protect the Garment from Odor Caused by Bacteria