Size: Large|Color: Red. The Wiggles Wags & Whiskers patented Freedom No Pull Training Package has everything you need to train your dog to walk easily on a leash. Constructed of industrial strength nylon webbing with reinforced X-stitching it provides you with the security of knowing this harness will stand up to daily use by even the strongest dogs. The training package includes: 1. The Freedom No-Pull Harness — the ultimate training tool featuring a martingale loop on the back of the harness to tighten slightly around your dog’s chest and discourage pulling – and a connection in the front that allows you to redirect attention back to you. 2. A Coordinating Training Leash which can connect to the front and back of the harness simultaneously or to the back of the harness and a collar at the same time for additional control. 3. Training instruction brochure. 4. Fitting instructions and Warranty Information. The harness has a contrasting loop (which can be seen in the photos) to make it easier to put on and take off. Sizing information: Use a soft tape measure (tailor’s tape measure) or a piece of string or ribbon mark the measurement around the chest and then measure the string from the end. Chest and neck measurements and weight recommendation: X-Small: Chest – 14″-20″; Neck – 10″-14″; Weight – 12-17 lbs. Small: Chest – 18″-24″; Neck – 10″-14″; Weight – 18-25 lbs.Medium (5/8″ width): Chest – 22″-28″; Neck – 14″-18″; Weight – 25-40 lbs.Medium (1″ width): Chest – 22″-28″; Neck – 14″-18″; Weight – 40-65 lbs.Large: Chest – 26″-32″; Neck – 16″-20″; Weight – 60-85 lbs.X-Large: Chest – 30″-38″; Neck – 20″-26″; Weight – 85-140 lbs.2X-Large: Chest – 36″-44″; Neck – 26″-34″; Weight – 140-250 lbs.