Curiosity is the engine of creation. Born to explore the city, this version of theadidas NMD_R1 is the forward-thinking evolution of '80s-inspired running shoes. A stretchy knit upper made from recycled materials hugs your foot for comfort. Long runs and slippery city sidewalks are no problem, thanks to the grippy rubber outsole and Boost midsole underfoot.This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn. No virgin polyester.