Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Flag Cotton Polo Shirt - Crafted from durable cotton mesh, this polo shirt features a flag-inspired patch and our signature embroidered Big Pony. Ribbed polo collar with contrast tipping. Two-button placket. Short sleeves with ribbed armbands. Applied flag-inspired patch and embroidered text at the right chest. Uneven vented hem. Our signature embroidered Big Pony accents the left chest. 100% cotton. Machine washable. Imported.