Excellent preowned condition- like new Black cobalt These training sneakers from On feature computer-optimized technology for next-level cushioning while you run. Features: Low-boot construction, recycled knit uppers, CloudTec Phase™ midsole for optimal cushioning, tongue pull, lace-up closure Why We <3 It: On used Finite Element Analysis (FEA) to create the CloudTec Phase™; the computer-generated Clouds seamlessly collapse like dominos when your foot lands, resulting in supreme, enhanced cushioning, and a softer, smoother transfer from heel to toe