kybun Women's Langnau Green ShoeLightweight and breathable lace up shoe, sleek and essential, soft and flexible. Effortlessly chic. Equipped with the exclusive kybun Swiss air cushion Tropo sole, with good stability and light rebound effect, that delivers an elastic springy walking sensation, providing an optimal shock absorption together with high energy return, relieving the feet, legs and muscles pressure during everyday regular or intense mobility.