John Muir Trail Men's UPF 50+ Short Sleeve T-shirt 100% Microfiber Imported UPF 50+ UV/Sun Protection Includes PURE-tech moisture-wicking technology and Anti-microbial technology which keeps you dry and the shirt odor free Unisex cut; Sizes may run smaller for some men Lightweight, breathable, and super soft against the skin Great for a day of fishing, sailing, swimming, hiking, rowing, surfing and any other of your favorite sports