Shop Girls's at RalphLauren.com, the Official Site of Ralph Lauren. Long-Sleeved Polo Shirtdress - This preppy polo shirtdress features striped accents and our signature embroidered pony. Ribbed polo collar. Four-button placket. Long sleeves with ribbed cuffs. Ruffled drop-waist skirt with contrast stripes. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.