Official trainers of the Porsche Motorsport teams. One-piece, seamless knitted mesh upper for lightness and breathability. Sock-fit construction with special inner shoe construction for maximum comfort. With integrated Engineered Stability Zone in the two-layer midsole for optimal stability, highly effective cushioning that returns energy with every step, and antimicrobial, breathable EcoOrthoLite™ insole. 50% rubber, 30% polyester, 20% polyurethane. In black.