NIKE Flex Experience 4 Print Preschool Running Shoe (10.5C-3Y) Mesh Mesh upper with leather overlays for breathability and durable support Injected unitsole midsole doubles as the outsole for cushioning and durability Rubber outsole with flex grooves for traction and a great ride Waffle outsole pistons absorb impact and spring back for added responsiveness Heel is rounded to roll with the ground for more natural range of motion