One word has traditionally come to minds for sneakerheads when it comes to sneaker cushioning: Air. Nike’s multiple iterations of that signature innovation have ruled the sneaker world for decades. But with adidas’ 2013 introduction of Boost, we’ve begun to see a change. Air isn’t going away, but in 2016, it’s Boost that has the hype.

Whether it’s used for sport, fashion, or just comfort, many of today’s most popular and coveted models feature the foam-based cushioning platform. You may have copped your share of restocked NMDs, but how much do you actually know about the brief history of Boost? Test your knowledge below.