BOOST midsole Knit upper Textile lining Lace-up closure The worlds of running and style just merged. With these adidas NMD_R1 Shoes, you get next-level comfort plus good looks you can pair with any outfit. So go ahead - start exploring. With an adaptive knit upper that hugs your feet and a responsive BOOST midsole that sends you forward with every step, there's no limit to where you can go and what you can see. The rubber outsole grips to city sidewalks as you go.