Mizuno Wave Creation 20 Women's Sky Gray/Silver Designed to help runners tackle the long run, the Mizuno Wave Creation 20 running shoes are back and ready to go the extra mile. This edition features and all new Infinity Wave technology with a softer, more energized feel than previous models. A new, premium sockliner provides a luxe comfort from the very first step. What's New?:Brand new Infinity Wave and updates to the upper provide a better fit and a softer, bouncier ride. Technical Elements Upper: DynamotionFit upper provides lightweight, breathable support around the forefoot. Padded tongue and heel collar enhance comfort. Midsole:The Infinity Wave technology provides a softer, long-lasting cushioning and an energized feel during the run. Outsole: Durable rubber that allows for longer wear in high impact areas and provides more traction at the heel strike.