The Freedom no-pull harness incorporates a patented martingale loop on the back of the harness which tightens gently around your dog’s chest to discourage pulling. Constructed of industrial strength nylon webbing, the patented Keystone™ FREEDOM No-Pull Harness features solid stainless steel hardware, and reinforced X- stitching, providing you with the security of knowing that this harness will stand up to daily use by even the strongest dogs. The patented action loop sits at the back of the dog between the shoulders allowing your dog to walk in a straight line without twisting or straining, while discouraging pulling by tightening gently around the chest. The Freedom Harness features a structural ring on the front of the chest for an additional control point which lets you “steer” your dog and redirect his or her attention. This makes training easier!