They are designed to prevent drivers and passengers from being completely ejected from a vehicle by spreading out their bodies’ energy over their shoulders, chest, and pelvis hinein a collision. Polyester is now commonly used for seat belt material. Nylon was once the most common fabric, but it now stretches https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=10574305