Mizuno Women's Wave Sky 4 Waveknit Running Shoe 9.5 Mizuno WAVE: The Mizuno wave Plate disperses energy from impact to a broader area providing a stable platform and a superior cushioning U4ic Midsole: delivers optimal shock reduction, durability, and a superior ride. innovatively light, well cushioned, responsive, and resilient Waveknit upper provides exceptional stretch in areas of the foot that expand and hold in areas you need secure Smoothride: creates a smooth transition from heel to toe on every step X10 outsole: durable carbon rubber that allows for longer wear