Secure every journey with our crash-tested dog harness for cars. Safety for all passengers. Our crash test-approved dog harness for cars is designed to secure your dog in the back seat and provide peace of mind for all passengers on every ride. It is constructed to withstand the forces of a sudden stop or collision, reliably securing your dog with the car's seatbelt. Unlike extensions or add-ons, this harness keeps your dog close to the seatbelt to prevent forward movement that could endanger other passengers in the event of an accident. In some regions, laws even require pets to be secured to ensure the safety of everyone in the vehicle, making this harness a must-have for responsible travel. User-friendly. The Thule Cappy makes traveling with your dog easy, whether for short trips or long journeys. The step-in design eliminates the need to pull the harness over your dog's head, making it ideal for dogs that dislike traditional harnesses. Once secured, the harness allows your dog to move, sleep, and stay comfortable throughout the journey. The coated fabric is easy to wipe clean and stays fresh for every adventure. Wear it throughout the ride. The padded mesh panels are breathable and comfortable, ensuring your dog feels good on both short and long trips. With the convenient leash attachment on the back, you can quickly secure your dog during short bathroom breaks without having to remove the harness.