Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Custom-Fit Big Pony Polo - This short-sleeved polo shirt is crafted from soft cotton mesh and tailored for a slim, modern fit. Ribbed collar. Two-button placket. Short sleeves. Ribbed armbands. Uneven vented hem. Applied "3" patch at the right sleeve. Our signature embroidered Big Pony accents the left chest. 100% cotton. Machine washable. Imported.