The following year Nike’s infamous air bubble found itself incorporated right into the sole of the sneaker.

Nike Air Max - 1991 advertisementHatfield worked alongside Bruce Kilgore, the designer of the Air Force 1, to strip away more foam and make the sneaker’s Air unit bigger than ever. The Air Max 180, which introduced 180 degrees of visible Air cushioning, gave athletes a softer, closer to the ground feel. But, the cushioned sole technology wasn't the only change. The design was noticeably sleeker, ensuring popularity in the streets.

Fun fact: The Air Max 180 was later used on the very first Kanye West sneaker collaboration, although only a handful of samples are said to be floating around.

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