Aster Kids - Rocker (Infant/Toddler) (Jean) - Kids' Shoes: Excellent sandal for boys. Leather upper. Buckle closure offers secure fit. Leather lining. Aster&trade designs the shape of their shoes to perfectly espouse the natural contour of the foot. Perfect shoe flexibility allows the foot to move normally without any constraint. Sole has a specific stiffener that holds the foot in place, while the sole guarantees good adherence to the ground and absorbs shocks.