Shop Boys's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton Half-Zip Pullover - This sporty half-zip pullover is crafted from soft cotton and features our signature embroidered pony. Mockneck. Half-zip front. Long sleeves with ribbed cuffs. Pieced stripes down each arm. Even-sewn hem. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.