Mizuno Women's Wave Elixir 7 Running Shoe 100% Synthetic and mesh Rubber sole Dynamotion Fit, G3 Sole Mizuno Wave Technology: SmoothRide Engineered Infinity Wave, full-length, that provides the ultimate in protective cushioning. Smooth Ride - engineering approach to minimize the rapid acceleration and deceleration of the foot during transition, creating the smoothest ride possible. Dynamotion Fit technology maximizes fit and reduces stress. Upper - Airmesh upper provides the utmost in breathability and comfort of the upper. AP Midsole is a lightweight, reponsive, yet durable cushioning copolymer. Weight: 7.7 oz X-10 outsole is the most durable carbon rubber that allows for longer wear in high impact areas and supplements traction in the heel strike. G3 Sole- Outsole provides superior grip with less weight.