Solvit Standard Car Safety Harness Improves safety by reducing driver distraction and restraining pet in case of sudden stop Not crash-tested, but still strength-tested to 2000+ lbs. ( For crash-tested models, consider Solvit Deluxe Car Safety Harness) Fleece-lined vest for comfort Easy to load/unload pets and fits ALL vehicles Integrates with vehicle seat belt system to provide some range of motion while traveling; but locks during sudden stops