Upper: Asymmetrical lacing for a larger kicking surface. The synthetic upper is extremely light and easy to clean. Lining: All linings inside the shoe are treated with AgION technology, which works against bacterial growth and odor development. Inlay: Die-cut EVA insole for light weight and comfort. Midsole: Pre-molded EVA midsole with ADIPRENE insert in the heel for comfort and shock absorption. Outsole: NON MARKING indoor rubber tooling for durability and excellent traction on all polished indoor surfaces.