So, wait… 

Stan has mentioned a girdle in canon.  But this makes it very clear that as soon as he takes the suit jacket off, he isn’t wearing a girdle underneath his shirt, right?

Oh my god.  Stan incorporated the girdle into the suit jacket!

Genius.  Like those “control-top” pants, but it actually works.

(Sidebar: that single button must have a buttonhole reinforced by, like, titanium.)

So… y'mean to say he did all this work just so he only had to take off his jacket after work and not two separate garments to take the girdle off.

Engineered laziness at its finest.