Nitro-infused DNA tuned midsole provides plus landings and energizing toe-offs. Tuned Cushioning New DNA tuned, the next generation of nitrogen-infused foam, is created with dual-sized cell technology. Larger cells in the heel provide plush landings, while smaller cells in the forefoot invite responsive toe-offs. Accommodating Fit New engineered double jacquard knit upper provides a flexible, accommodating fit. Smooth, Stable Transitions The broad platform stabilizes your foot while the tuned heel and forefoot promote smooth heel-to-toe transitions.