shoulder harness(Taras); safety-belt(a fixed belt in a car or aircraft used to keep a passenger from being thrown out of the seat in an accident, crash etc.); seat belt(in a car, aeroplane etc., a safety-belt which will hold a person in his seat in an accident etc.)
safety belt(He braked so suddenly that the passenger on the front seat who was not wearing a safety belt was thrown out of the car through the front window. — Он затормозил так резко, что пассажир на переднем сидении, который не был пристёгнут ремнём безопасности, вылетел из машины через лобовое стекло.)