Seatbelt technology has evolved significantly since its inception. Modern seatbelts are designed to keep passengers safe during a collision by restraining their movement. They typically consist of a webbing material that stretches to absorb energy, a retractor that allows for comfortable movement, and a locking mechanism that engages during a crash. Additionally, many vehicles now feature advanced seatbelt systems, such as pretensioners that tighten the belt upon impact and load limiters that reduce the force on the occupant's body. These innovations enhance safety and help prevent serious injuries in accidents, making seatbelts a crucial component of vehicle safety.