NIKE Alpha Pro Td (Size 9.5) Blue Black 579636-040 The lightweight synthetic leather upper includes Dynamic Flywire technology to help provide stability. The entire upper is nearly seamless to give a tapered, speed-specific fit. Underneath the foot is a wedge Phylon midsole that offers a mix of midfoot cushioning and support. It reduces in the forefoot to give more feel and responsiveness during acceleration. The Alpha Pro is finished with a Pebax plate for lightweight propulsion and a forefoot adaptive traction system that increases ground control and edge traction. All of it creates the lightest, yet most stable Alpha ever, for players who need both support and speed.