A lighter, leaner, more modern take on a trail classic, the Columbia Sportswear Mens Silver Ridge Lite Long Sleeve Shirt features clean, simple lines and an impeccable fit in an ultralight, soft, and cool wearing fabric with UPF 40 and hidden back vents. Roll up sleeves with tab holders let you adapt to the conditions, and antimicrobial, sweat wicking performance keeps you comfortable over the long miles. Ultralight Omni Wick ripstop 100% polyester fabric. Omni Wick pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable. Omni Shade UPF 40 sun protection. Antimicrobial treatment protects the fabric from bacterial growth, preventing odor. Vented in back. Roll up sleeve tab. Regular fit for comfortable range of motion. Center back length 30.