Coveralls are loose-fitting, one-piece garments that protect the body and clothing from workplace hazards like dirt and chemicals. They are worn by mechanics, engineers, painters, pilots, firefighters and other industrial workers. Coveralls cover the entire body and are made from durable materials to withstand harsh work environments. Modifications include flame-resistant materials for firefighters and high-visibility versions for safety in low light. Canadian manufacturer Coveroc produces various types of customized coveralls, including polycotton, nomex, and insulated options.