Baby boys two-piece trouser set from Ralph Lauren The beige trousers are made in mid-weight cotton twill with a slight stretch. They have a front button fastening and an elasticated waistband. They come with a removable navy blue fabric belt with a logo and bulldog design. The navy blue, red, green and yellow checked shirt is made in soft cotton. It has a button-down collar and the signature pony logo embroidered in navy blue on the chest.