The Tre Ponti Forza Anti-Pull harness is hypoallergenic, odour proof, waterproof and suitable for medium, large & strong dogs. Most importantly all Tre Ponti harnesses unique fit removes pressure from the throat, trachea and spine. With a wide, padded chest band for extra cushion and comfort and features a highly visible reflective trim. The front strap fits on the shoulder blades giving the dog optimal freedom of movement while you remain in control and grip on your dog. Forza stops the dog from pulling due to its “loop” sliding back handle design. This "loop" principle ensures that the harness tightens when the dog pulls the leash. However, with the ergonomic design of the harness it does not cause pain or irritation because it does not touch any negative pressure points.