Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton Baseball Cap - This classic baseball cap is made from breathable cotton and accented with our signature embroidered pony. Seamed bill. Six-panel construction. Embroidered ventilating grommets. Adjustable cotton strap with a "Polo"-engraved metal slider buckle at the back. Embroidered "Polo" at the back. Knit band at the interior. Our signature embroidered pony accents the front. 100% cotton. Machine washable. Imported.