The Mizuno Wave Sayonara Running Shoe delivers mile after mile of light, cushioned, stable fun. Featuring The Mizuno U4iC Wave midsole which has been designed to be unlike other shoe technologies, when your foot touches the ground Wave reduces and redirects impact forces away from the foot. Acting a lot like your car"s suspension, it cushion"s and keeps your foot centered in the shoe throughout your stride. Mizuno are gearing different shoes to fit the unique stride of different runners, through the development of multiple wave shapes. So if its a local jog or running past the 20 mile marker, Wave will always feel amazing underfoot. Also featuring a G3 outsole, a new performance outsole component that enhances grip and traction, while reducing the shoes overall weight. Mizuno Intercool which is a full length ventilation system in the sole of the shoe to remove heat and humidity away from the foot, ensuring you a cool, dry comfortable ride. SmoothRide is another technology Mizuno have managed to cram in to the Wave Sayonara designed to give the most fluid, smooth, rocking chair like motion in every step. Flex grooves in the heel promote natural movement from the back of your foot to the front. Flex controllers in the forefoot smoothly continue the roll forward giving your foot a more solid platform at toe-off. The Wave Sayonara is constructed with an AIRmesh upper to maintain a high standard of breathability, allowing the foot to stay cool. The X-10 sole provides Mizuno"s most durable carbon rubber, allowing for longer wear in high impact areas and enhances traction at heel strike.