The Nike Shox OZ shoes features lightweight mesh upper with stitchless overlays is comfortable and breathable. This series of Nike Shox shoes use original Shox four-column cushioning unit in the heel provides energy return and total comfort.The Nike Shox OZ Shoes uses a high deputy polyurethanes hollow foam columns as the shock absorbers in combination with a TUP heel counter to ensure equal distribution of the energy from impact.100 % authenticated ,brand new in box. We promise the best after- sale support for all customers shopping online!