Shop Childrens's at RalphLauren.com, the Official Site of Ralph Lauren. Ralph Rainboot - A classic rubber rain boot is embellished with a signature Big Pony for preppy style, even in rainy weather. Rubber upper. Rounded toe. Buckle detail and contrasting Big Pony at the outer shaft. Cotton lining. Lightly padded insole. Rubber lug sole. Imported.