The Mizuno Wave Alchemy 7 running shoe offers control, cushioning, transition and comfort for the runner with medium-to-low, flexible arches. AIRmesh™ upper provides the utmost in breathability and comfort. AP midsole adds lightweight, responsive, yet durable cushioning. SmoothRide™ engineered, composite double fan wave provides the perfect blend of control and cushioning while offering an unsurpassed ride. VS-T™ shock absorbing cushioning compound in the heel. Mizuno Intercool™ full-length midsole ventilation system reduces heat and humidity build-up inside the shoe. X10™ carbon rubber in the heel allows for longer wear in high impact areas and supplements traction at heel strike. SmoothRide™ engineered combination solid rubber/blown rubber forefoot outsole design for cushioning, flexibility and durability. Wt. 9.4 oz.