Three button closure polo stylenForward-rolled shoulder seams for abrasion resistancenSelf fabric collarnActive odor control provided by silvadurnFor the guy who needs a neck-protecting shirt in a classic style, we upgraded the favorite polo with active cooling, odor control, wicking, and UPF 50. Wicking, heathered fabric stays fresh-looking longer. Cool and fresh: sol cool xylitol Knits react with moisture to create a cooling sensation, and silvadur activates silver ions in the presence of undesirable Bacteria, helping eliminate odor.