The KONG Ultimate Safety Tether is a vehicle restraint for dogs that connects to the LATCH/ISOFIX anchor system found in most modern cars, securing your dog safely in the back seat during travel.

Unlike standard seat belt clip tethers, the Ultimate Safety Tether uses the three-point LATCH anchor system — the same standard used for child safety seats — offering a more secure and stable connection than boot-loop or seat-belt-only attachments. It is adjustable to suit different dog sizes and attaches to a harness for safe, comfortable restraint.

The appeal is straightforward: it uses an anchor system already engineered for impact loads, which seat belt clip adapters generally aren't. For owners who travel frequently with their dogs, it's a more considered approach to in-car safety than a standard tether clip.