Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Custom-Fit Big Pony Polo - This trim-fitting polo shirt is crafted from breathable cotton mesh and features our signature embroidered Big Pony. Ribbed polo collar. Two-button placket. Short sleeves with ribbed armbands. Uneven vented hem. Our signature embroidered Big Pony accents the left chest. 100% cotton. Machine washable. Imported.