Mizuno Running Women's Wave Renegade 4 Running Shoe 100% AIRmesh Rubber sole Ortholite sockliner for a plush step-in feeling. Mizuno Wave Technology: SmoothRide Engineered Infinity Wave, full-length, that provides the ultimate in protective cushioning. Sensor Point - Suspension system which connects the Wave plate to the ground, thereby enhancing stability and traction. 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: 11.4 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. VS-1 - Shock-absorbing cushioning compound found in the heel and forefoot.