adidas Performance Men's Energy Boost M Cushioned Running Shoe 100% Nylon Mesh Tech Fit/Textile Imported n/a Rubber sole Industry leading energy return and cushioning technology in the energy boost neutral trainer Tech fit stretch upper for sock like fit with welded overlays and cage striping for support Boost midsole for state of the art energy return and cushioning that will outlive any conventional eva midsole Mid foot torsion bar for support Adiwear outsole for lightweight durability