Waterproof car seat covers are the best fabric option for a pet owner as it not only protects your car back seat but also saves it from getting scratched by your dog. It should be the thick one that can be comfortable for your dog apart from keeping your car back seat cover because your dog’s comfort is as important as your seat. If you want a durable material for your car seats, you can look for nylon, polyester, and cotton cloth. These waterproof car covers are the best choice to prevent any kind of leakage of water.