A boilersuit is a one-piece garment with
full-length sleeves and legs like a jumpsuit, but usually less
tight-fitting. Its main feature is that it has no gap between jacket and
trousers or between lapels, and no loose jacket tails. It often has a
long thin pocket down the outside of the right thigh to hold long tools.
It usually has a front fastening extending the whole length of the
front of the body up to the throat, with no lapels. It may be fastened
with buttons, a zip, velcro, or snap fasteners. Boilersuits with an
attached hood are available.