Simpson Performance Products is an American motorsports parts supplier that manufactures safety products such as gloves, helmets, harness systems, driver's suits, head restraints, and shoes. It is marketed to racers ranging from participants at local track days to international Formula One and NASCAR teams. It was started by Bill Simpson as Simpson Drag Chutes.

A racing suit or racing overalls, often referred to as a fire suit due to its fire retardant properties, is clothing such as overalls worn in various forms of auto racing by racing drivers, crew members who work on the vehicles during races, track safety workers or marshals, and in some series commentators at the event.