Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton Long-Sleeved Polo - This classic long-sleeved polo shirt is crafted from soft cotton mesh and features our signature embroidered pony. Polo collar. Two-button placket. Long sleeves with ribbed cuffs. Uneven vented hem. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.