XK442-X8X245 New running shoes with active nylon upper.The iconic wavy midsole provides cushioning and comfort and the reflective details guarantee high visibility.Composition:Main Upper Shoe:100% Polyester.Secondary Upper Shoe:100% Thermoplastic Polyurethane.Tongue:100% Polyester.Lining:100% Polyester.Insole:100% Polyester.Sole:100% Rubber.Midsole:100% Ethylene-Vinyl Acetate.