Shop Women's at RalphLauren.com, the Official Site of Ralph Lauren. Skinny-Fit Big Pony Polo - This skinny-fitting stretch-Pima cotton polo shirt is designed with three-quarter-length sleeves and our signature embroidered Big Pony at the left chest. Ribbed polo collar. Applied buttoned half-placket. Three-quarter-length sleeves with ribbed cuffs. Uneven vented hem. Our signature embroidered Big Pony accents the left chest. 97% Pima cotton. 3% elastane. Machine washable. Imported.