all in leather- a modern take on the cowboy image maybe
The films have this post apocalyptic/ punk style which popularised the genre in film and fiction writing.
I think these films can be seen as a modern take on the Western genre. You have the lone ranger (aka Max) taking on the punks (bandits) that are causing chaos.
The location can be seen as similar; hot dry places where the idea of order is not clear, much like westerns
Although normal weapons are used, in these films the cars. bike are used as weapon much more prominently
wearing masks creates a persona of which you can hide behind
The Punk image has been in popular use in post-apocalyptic films: leather clad and coloured hair