Columbia Men's Silver Ridge Big & Tall Long Sleeve Shirt 100% Other Fibers Imported Omni-Wick Product Omni-Shade UPF 5 sun protection Sun protection collar. Vented Roll-up sleeve. Sun protection cuff Roll-up sleeves with tab holders Omni-Wick Advanced Evaporation Omni-Shade UPF 50 sun protection Roll-up sleeves Sun protection collar