Rubber sole 25% of the components used to make the upper contain a minimum of 50% recycled content Boost midsole Time isn't slowing down. If anything, it seems to be moving at hyper-speed. And since the adidas NMD_R1 shoes are built on a foundation of speed, it only makes sense that these would be the perfect thing to lace into while you hold the pace of the day. The overlays add a futuristic edge to the streamlined silhouette. Boost cushioning makes every step feel like a good one - which is great since you're not slowing down either.