Ergonomically engineered to help optimize your body's alignment, natural movement & energy; A pocket of high-rebound impact-reducing Dynamicush cushioning is hidden in the rubber outsole maximizing comfort in flat styles; Anatomically contoured EVA-foam footbed diffuses pressure & gives natural arch support; Grip suited to everyday use/road tread; Elastic gives more flex in the buckle fastening; Recycled material - brushed-metal buckle & eyelets (100% recycled zinc)