Mizuno Running - Wave Rider 7 (White/Red/Charcoal) - Men's: A well-cushioned running shoe designed for under-pronators to neutral runners. Created for the runner who has a neutral gait cycle and demands the best blend of cushioning and stability that gives a "feel the road" sensation. 24mm/12mm (heel to forefoot ratio). Composite Parallel Wave allows for an optimal blend of cushioning and stability for the runner with a neutral gait cycle. The Parallel Wave is made of pebax and polyester fiber inserts to uniformly absorb shock and cushion the foot during heel strike. The polyester inserts maximize the cushioning properties of Wave Technology during heel strike, while the pebax provides the framework for uniform absorption of shock. X-10 in the heel for durability. X-10 provides the most durable carbon rubber from Mizuno that allows for longer wear in high impact areas and provides more traction at heel strike. Solid rubber in the forefoot for durability and flexibility. Shoe weighs 11.4 oz.