BioMoGo DNA fuses BioMoGo midsole and DNA cushioning technology for a fully custom responsive ride that adapts to the needs of each and every runner.S-257 Cushsole is a midsole compound used as an insole to deliver even more cushioning and flexibility.Rounded Heelencourages a more natural midfoot to forefoot strike and creates a smoother landing.Forefoot Dynamic Flex Grid provide hyper forefoot flexibility.Gearing mechanism allows heel and forefoot to move independently for an optimal toe off. The Brooks Neuro 2 is an extremely flexible performance uptempo running shoe designed for a neutral foot motion.