This automobile safety harness keeps your pet securely in its seat. The harness fastens to a seat belt and has a padded, fleece-lined vest that straps comfortably to a cat or dog's chest, securing the pet during sudden stops. Since it relies on a seat belt's locking mechanism, the harness will not restrict a pet's normal movements and locks only in response to abrupt motions. The durable yet flexible harness stretches to absorb shock that would otherwise be transferred to the pet. Metal D-rings reinforce load-bearing sections of the harness to provide optimal strength, and the harness adjusts to provide a custom fit. Vest is machine washable. Extra Large. For pets 60-120 lbs.