I do believe i feel a Huzzah! coming on...
And lemme tell ya, coveralls have nothing on a diver's dry suit! Especially if you were diving a rebreather! Wow!An integrated vapor release may not be such a ludicrous idea after all. Not to exploit my tradesman background but I have on many occasions worn the heavy duty OD green military issue coveralls, or "Mean Greens" as they were called.... In point of fact it's safe to say I fairly lived in them for a number of months at a time while Defending the Frontier of Freedom and Keeping the World Safe for Democracy aboard US Naval vessels
Owing to their weight and thickness they could be somewhat uncomfortable in the hot confines of a shipboard engineering space so we naturally being fit young men, in hotter climates wore little if anything underneath them. Given the somewhat pedestrian nature of shipboard cooking flatulence was often an issue and it was indeed dissagreable to break wind in your coveralls and have the vapors waft out around your neck, having nowhere else to vent.
Often times due to the thickness of the material the "gas pocket" would remain entrapped therein for an astonishingly long time, to the point that a fellow would have forgotten all about his little time-bomb until he took a break and upon sitting down with cigarette and coffee in hand was treated to a rather pungent reminder, owing to the bellows effect of the maneuver upon the garment.
Thus an Integrated Vapor Release Saddle would be a jolly good idea from both a health standpoint and simple common decency as the vapors take on a certain staleness over time.