K-Swiss Optim IV Omni Junior Tennis Shoes Leather A tennis shoe designed to provide unrivalled levels of support, comfort and durability for young players Leather upper with perforated detail on the toe box for ventilation and a reinforced toecap for added durability K-EVA midsole, a special formula EVA, offers maximised cushioning and enhances durability of the midsole Aosta II high density rubber outsole provides unsurpassable durability from heel to toe Raised pimple grip design on the outsole delivers traction and is ideal for use on artificial grass and clay