adidas’ 2019 celebration of the iconic ZX running shoe series continues with a reissue of the ZX 5000, ZX 6000, ZX 7000 and ZX 9000 models in their OG colourways. Each shoe is faithful to the original models, save the addition of a lace jewel and insole, which pay tribute to the 30th anniversary of adidas’ enduring Torsion System technology.