Which Nike product innovation, first released in 1987, revolutionized athletic footwear by making the previously invisible technology of cushioning visible, creating an entirely new product category?

In the competitive world of sports retail, product innovations can make or break a brand's success. One particular technology revolutionized athletic footwear and completely transformed how performance shoes were marketed and sold. This innovation created a billion-dollar product category that continues to influence sports retail strategies today. Test your knowledge about this game-changing product development that bridged technology and athletic performance.

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Nike Air Max (with visible air cushioning technology)
Nike Flyknit (with woven upper technology)
Nike Shox (with column-based cushioning technology)
Nike Free (with flexible sole technology)