Mizuno Men's Wave Creation 13 Running Shoe 100% Synthetic and mesh Rubber sole Mizuno Intercool- Full-length midsole ventilation system reduces heat and humidity build-up inside the shoe. 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: 13.0 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.