Patagonia Capilene Cool Shirt 12-18mos Excellent used condition A versatile performance knit built for use on trails or on the water, it’s quick drying, has stretch for mobility and comfort, plus HeiQ® Pure odor control keeps things fresh. Built with 94% polyester (35% recycled) and 6% spandex jersey with 40+ UPF sun protection, it keeps kids comfortable in conditions ranging from cool to hot.