Under Armour coldblack Chip In Stripe Polo - Men's Ultra Blue / Electric Blue / Stealth Gray Large Revolutionary coldblack technology reflects IR and heat rays, so even dark color don't get as hot UPF 30+ protects your skin from the sun's harmful rays Yarn-dyed fabric is stretchy, light and breathable so it can handle the hottest days Moisture Transport System wicks sweat and dries fast Anti-odor technology prevents the growth of odor causing microbes