By Ewan Murray Retro football shirts have never been more popular than they are today. While there are some eye-wateringly beautiful modern kits, there is something about that vintage look that just hits different. The baggy fit, the wonderfully garish designs and the nostalgia they bring, retro shirts simply can’t be beaten for most football fans. There have been some absolute corkers over the years at both club and, in particular, international level and while football fashion often divides opinion, many old-school kits are unanimously loved. For the sake of these rankings, we are classing r…