A lightweight running shoe with flexible rebound. KINVARA Jinghua 14·The upper is upgraded to a single-layer breathable engineering mesh small inner boot design, which presents a stunning upper wrapping feeling, is lighter and more breathable. FORMFIT three-layer adaptive system dynamically adapts to the shape of the foot and improves wrapping. The PWRRUN material of the midsole is optimized to improve the rebound performance. The thickened midsole improves cushioning performance and adapts to various running scenarios. PWRRUN+ insoles fit better and have more obvious rebound. The 4mm drop is suitable for running with the forefoot or full palm on the ground.