KangaROOS is an American brand of sneaker originally produced from 1979 through the 1980s, with a later revival that continues in present. KangaROOS products were notable for having a small zippered pocket on the side of the shoe, large enough for a small amount of loose change, keys, etc.
KangaROOS were designed by American architect and jogging enthusiast Bob Gamm. Gamm was a running enthusiast who would go ten kilometers a day, but preferred light athletic clothes without pockets. He designed the sneakers for his own personal use as a place to store his keys and money.
Further refinements on the original design led to several significant innovations in athletic footwear. One such innovation, the Dynacoil, was a patented energy release system designed in the mid-1980s by former Nike designer Ray Tonkel and consultant Al Gross and tested by NASA. Many other athletic shoe manufacturers would later incorporate similar designs into their shoes. In the early- to mid-1980s many USA professional athletes wore ROOS football and baseball shoes as well as shoes for running and training.