Shop Baby's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton Mesh Polo Shirt - Crafted from soft cotton mesh, this classic polo shirt features our signature embroidered pony. Ribbed polo collar. Two-button placket. Short sleeves with ribbed armbands. Uneven vented hem. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.