Which groundbreaking footwear technology, developed by Nike co-founder Bill Bowerman, was inspired by his wife's waffle iron and revolutionized running shoe design in the 1970s?

In the competitive world of sports footwear, technological innovations can make all the difference between market dominance and obsolescence. One particular product development breakthrough revolutionized Nike's position in the athletic footwear market during the late 1970s, setting the stage for decades of industry leadership. This trivia question explores that pivotal moment in sports product design history.

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Air cushioning technology
Waffle outsole pattern
Flyknit woven upper
Shox column suspension system