Spyder powergrade half zip baselayer junior boys youngster can find the ideal baselayer in these spyder powergrade half zip baselayer an over the head design with a half zip fastening and full length sleeves plus prowb technology for a warm and sweat wicking wear a large spyder branded image sits across the front junior boys baselayer over the head design half zip fastening full length sleeves prowb technology spyder graphic image 100 polyester machine wash