The stretch Series Harness is a durable ergonomic harness which is suitable for all active dogs… small to large breeds. When using the harness, the pressure caused by pulling is evenly distributed by extra elastic webbing. When your dog pulls, the extra elastic makes it more comfortable for dogs that pull and for you! The harness can be adjusted around the neck and chest, which makes this well-designed, a key feature in this product is that is has reflective trimming for dark situations. It is perfect harness for active working dogs, for all environments. Overall this is a great product for all breeds, you also have the option to attach another lead to stop pulling..via D-ring on the centre of the chest.