ONEMIX Bumper EliteThe Bumper Elite features a multi buffer design with built in cushioning airbags, similar to a race car seat, that secure your heel in the midsole, stabilize your feet, and cushion the impact of each step to protect your knees. The double layered, skin friendly sandwich mesh upper and enlarged forefoot space provide breathability and comfort, suitable for various foot shapes, allowing you to run freely on all kinds of roads. Excellent cushioning