You have the timeline wrong..
Fighter jocks always don their Flying Suits (AKA work overalls) BEFORE going into the bar for beer with mates - even if they had been desk bound all day.
Now its Jackanory Time:
In the "olden days" certain mates would don the `special` flying boots with the little leather flap (posing pouch?
) over the laces so that everyone would know what they flew at some point in their career.
and...
At a training base somewhere in North Wales, this barside activity would often be followed by the "Rip the leg pockets off visiting trainee pilots flying suits" event. Allegedly