100% polyester, ClimateTEK dynamically responds to your body temperature to keep you cool when things heat up, FreshTEK odor control helps keep you feeling fresh through long hours of wear, Greater Arm Mobility helps extend arm and shoulder range-of-motion so you can move freely, Moisture Movement Technology helps wick moisture away from the skin to keep you dry and comfortable, Sun Protection Fabric helps block harmful UV rays, keeping you covered and comfortable during long days outdoors, Short sleeves, Spread collar, Model is 6'1" wearing a size large, Imported,