Mizuno Wave Nirvana 8 Running Shoes SmoothRide Engineered, Full-length Composite Double Fan Wave provides superior protection while offering excellent support. Suspension system which connects the Wave plate to the ground, thereby enhancing stability and traction. Gender Engineered Engineering approach to minimise the rapid acceleration and deceleration of the foot during transition, creating the smoothest ride possible. Lightweight, responsive, yet durable cushioning copolymer.