Puma MERCEDES - AMG PETRONAS X-RAY SPEED Motorsport rules with the Puma MERCEDES - AMG PETRONAS X-RAY SPEED. The injection-moulded EVA midsole provides stability, while the rubber outsole and upper are inspired by one of PUMA's most iconic styles, reinterpreted for today with a blend of materials in the upper. This is a voluminous shoe with an amazing colour pattern that stands out in a crowd. Puma MERCEDES - AMG PETRONAS X-RAY SPEED