The top Balenciaga 4th generation 4.0 Balenciaga Track 4.0 The fourth generation of Balenciaga adds a new design. While continuing the outdoor contours and complex upper structure of the Track Trainer, it is an upgrade to the previous generation of Track. Compared with the previous generation, Track.2 has a more Complex appearance, the upper is composed of 176 parts. Size: 35 36 37 38 39 40,