Which groundbreaking product innovation did Nike first introduce in their Air Max 1 sneaker in 1987 that revolutionized athletic footwear design?

Athletic footwear has evolved dramatically over the decades, with technological breakthroughs changing how athletes perform and how consumers interact with sports products. This trivia question focuses on a pivotal moment in sneaker design history that revolutionized the industry and created a new paradigm for product innovation in sports equipment.

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Visible Air cushioning technology that showed the internal air pocket through a window in the midsole
The first computerized adaptive fit system that automatically adjusted to the wearer's foot
Flyknit sustainable fabric technology made from recycled plastic bottles
Magnetic fastening system that eliminated the need for laces or straps