These adidas NMD S1 shoes continue to draw inspiration from the heritage of the NMD franchise. The mesh upper with built-in bootie is timeless, but the outsole has a quirky look with authentic NMD plugs. Most Its comfort, with BOOST cushioning that provides energy return all day long. Standard fit. Lace-up closure. Mesh upper. Textile lining. BOOST midsole. Rubber outsole.