The first Nike line of footwear debuted in 1972 and one particular shoe, the Nike Waffle Racer was a hit. The Waffle Racer was much lighter than a traditional running shoe and featured a new innovation that Bowerman had developed, inspired from his wife’s waffle iron, an outsole that had waffle-type nubs for traction. As the years have run on Nike have continued to develop new technology to improve existing footwear components, Nike Air cushioning was introduced with the Tailwind running shoe in 1979, the Air Max which was the first Nike shoe to feature visible Nike Air bags was released in 1987, Nike Shox in 2000, Nike Free in 2004, and Lunarlon in 2008.