As a general rule of thumb, The Fashion Police believe that if an item can be described using the word "boilersuit" - and you're not a mechanic, say, or anyone else who has an actual reason to be wearing such a thing - it's probably a crime of fashion.
This is probably a crime of fashion.
As another rule of thumb, The Fashion Police believe that if you have to get completely naked every time you need to use the bathroom, it may not be a crime of fashion, but it's definitely going to be dammed inconvenient.
Also: is anyone else feeling sweaty/itchy just looking at this? No? Oh well, no all-in-one tweed boilersuits for us, then...