Mailmen should be able to travel using mail chutes like Marios

[ZeWaka]

==>Second, the Syndicate Mailman Suit is tweaked so that in addition to letting you flush yourself into the mail chutes, it also lets you "break" from your intended path-of-travel and freely move around in the pipes wherever you want

this would be cool if paired with the tg-style vent travelling system, maybe work like voltron