When the Nike Foamposite One first dropped in 1997, it was like nothing anyone had ever seen before, but people wore it in some impressive performances. The sleek $180 shoe had no Nike branding on the upper, save a small Swoosh near the toe. Its synthetic upper and prominent carbon plate gave the shoe a decidedly futuristic look—one that many sneaker designers still strive to achieve.

With interest in Foams still going strong over 20 years after their launch, here are 20 things you didn't know about the Nike Foamposite.