A Boiler Suit consists of a single piece of clothing that combines trousers and a jacket. It is a one-piece garment, similar to the jumpsuit, which covers the torso, arms, and legs. Instead of offering the snug fit of the jumpsuit, the suit is much looser so that it may easily be worn over other clothing. Boiler Suit is a one-piece work garment consisting of overalls and a shirt top usually worn over ordinary clothes to protect them.