Columbia Women's Silver Ridge Plus Size Long Sleeve Shirt 100% Other Fibers Imported Omni-Wick. Omni-Shade UPF 40 sun protection Sun protection collar. Vented. Roll-up sleeve Zippered chest pocket Stash pocket Sun protection cuff Omni-Wick Advanced Evaporation Omni-Shade UPF 40 sun protection Zippered chest pocket Sun protection collar