Mizuno Women's Wave Creation 12 Running Shoe 100% Synthetic Rubber sole SmoothRide Engineering utilizes the maximum energy efficiency properties of both flexibile and stiff footwear Dynamotion Fit design technology relieves the stress the foot naturally places on footwear, eliminating distortion Mizuno Intercool is a full-length midsole ventilation system that reduces heat and humidity build-up inside the shoe Gender Engineering philosophy maximizes performance by tailoring footwear to the specific athletic needs women Mizuno Wave technology combines cushioning and stability