Mizuno Running Women's Wave Rider 13 Running Shoe 100% Synthetic and mesh Rubber sole Smooth Ride Engineering approach to minimize the rapid acceleration and deceleration of the foot during transition, creating the smoothest ride possible Mizuno Wave The leading footwear technology that combines cushioning and stability Gender Engineering from Mizuno adjusts to the fundamental differences between the running styles of men and women by creating shoes that more closely fit the different running styles of the male and female runner AP Midsole Engineering approach to minimize the rapid acceleration and deceleration of the foot during transition, creating the smoothest ride possible Dynamotion Fit Design technology that relieves the stress the foot naturally places on footwear - eliminating distortion for the perfect fit