Mizuno Running Women's Wave Nirvana 6 Running Shoe 100% AIRmesh 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+ Enhancing the inherent properties of AP Midsole, AP+ improves the quality of the running experience by offering increased reboud and a "bouncier" feeling, which extends the cushion durability, while maintaining the light weight New Dynamotion Fit creates perfect harmony between your body and your running shoes