kybun Men's Ruti Black ShoeEssential, sleek and functional lace up shoe with seamless jacquard upper construction for 360 degrees outstanding comfort in every situation. Featured with the unique kybun Swiss air cushion Strato sole, with big rebound effect, that provides an exceptionally gentle walking sensation while relaxing the strain on the joints and the back, stimulating the health promoting receptors in the feet and strenghtening the muscles at every step.