the.com/coveralls
One zipper between your dignity and whatever the job is about to throw.
means A one-piece garment worn over clothes to shield them from grease, paint, grime, or worse.
from Plainly named: they cover all of you, neck to ankle, in a single continuous piece. American English coined the term around 1900 as industrial work demanded full-body armor against muck.
One-piece logicNo gap at the waist for debris to invade.
Boiler heritageBritish boilersuits cleaned soot from inside boilers.
Coverall vs overallOveralls leave your torso and arms exposed.