Arm yourself against simmering heat and burning rays with cool-to-the-touch sun protection you can pack in a pocket and slip on in seconds. Armachillo® Cooling Sun Sleeves feel literally chill, thanks to the jade-infused fabric that disperses heat and wicks away moisture lickety-split. Plus the lightweight, stretchy 4.4-oz. 92% polyester/8% spandex knit provides UPF 40 sunburn protection. So you can work in short sleeves without getting seared. Reinforced thumbholes for a stay-put fit and maximum dexterity. Don't let the sun strong-arm you – grab a pair of packable, protective Armachillo Cooling Sun Sleeves and give sunburn the slip!