Designed for stronger dogs who need a tougher harness for more control or for dogs with a tendency to pull, these heavy-duty harnesses have 2 adjustment points. Use the front D-ring on the chest to attach your leash and control pulling or use the D-ring on the back for a regular dog walk and for dogs who don't tend to pull. Made from heavy-duty reflective nylon for strength and visibility and padded with neoprene for extra comfort. Extra Large Neck Size 15-17 inches Extra Large Chest Size 22.5-31.5 inches Breed guide Boxer, Border Collie, Staffy Stainless steel hardware D-rings (no rusting) Reflective webbing for night walks