Mizuno Wave Harrier 3 Trail Running Shoes Composite Double Fan Wave - Gives the athlete a balanced combination of support and cushioning. SmoothRide Technology - Outsole and midsole platform are engineered with smoothride which minimises changes in velocity to give the smoothest ride possible. AP Midsole - A Lightweight responsive midsole compound designed to provide decent cushioning with extra durability. Soft Durable AIRmesh - With seamless toe box for superb comfort and cooling. X10 Durable Carbon Rubber - Allows for longer wear in high abrasion areas and supplements traction at heel strike.