Design: Updated comfort collar provides a plush feeling against your foot Updated knit upper offers a sleek look and fit while providing structure and breathability In-Shoe Comfort: Adaptable DNA midsole technology and soft tongue and collar provide day-long comfort for every activity Durability & Traction: Green Rubber outsole, made from environmentally friendly silica, delivers a springy, responsive ride The bottom of the shoe is constructed to provide energy return for all your activities Additional Details: Made with recycled materials equivalent to 9 plastic water bottles Weight: 9.1.