Additionally, Seat belt webbing may exhibit signs of fraying or excessive wear. Prolonged exposure to sunlight and regular usage can deteriorate the material, compromising its strength. Made from application-specific high tenacity polyester, restraint – or seat belt webbing, has a tensile strength sufficient to support approximately three metric tons. NHTSA https://intern.ee.aeust.edu.tw/home.php?mod=space&uid=1934673