Columbia Men's Silver Ridge Plaid Long Sleeve Shirt, Night Tide Ripstop, 3X/Tall 100% Other Fibers Imported Omni-Wick Omni-Wick Omni-Shade UPF 30 sun protection Sun protection collar. Vented. Roll-up sleeves with tab holders. Sun protection cuff 57% polyester / 43% Supplex nylon