1980 saw the start of a new era and the introduction of one of the defining adidas tennis shoes. A legend from the start, the icon's evolution over the years saw a few changes — a new lacing system, more perforations, flexible overlays — all evident on this modern version today. Just like back then, the classic peg system lets you adjust shock absorption in the heel. This product is made with recycled content as part of adidas' ambition to end plastic waste. 20% of pieces used to make the upper are made with minimum 50% recycled content.