Like shade on a hot day, the Shadow Polo helps keep you cool and comfortable when you're hiking, climbing, or traveling. Shadow yarn wicks moisture, dries fast, offers UV protection, and Ionik silver ions resist odor to keep you feeling fresh. . Polyester body fabric with polyester and spandex contrast panels. Wicks moisture and dries quickly. UPF 50 for maximum protection from harmful UV rays. Ionik silver ions woven into fibers prevent odor and help regulate body temperature to keep you comfortable. Stretch contrast panels enhance mobility. 14 length zipper for ventilation and easy onoff. Snag rating of 4 for excellent. Saddle shoulder design eliminates shoulder seams for comfort when youre wearing a pack. Flatlock stitching for softness and nonchafing comfort. Contrast fabric on top of sleeves, back yoke, collar, collar stand, and zipper placket. Easy care, wash and wear.