No Traction & No Strangulation: 2 sturdy metal rings with reinforced stitching for safe dog walks. You can attach the chest ring to control your dog when he pulls. The back ring for occasional walks, jogging, hiking, etc. No stress on the dog's neck, the pressure is evenly distributed over the body to avoid pulling and choking. And the vertical handle helps you control and assist your dog. Easy To Wear & Adjust: This dog harness is easy to put on and take off with quick and simple buckles. Fully adjustable chest and neck straps allow for a custom fit for your furry friend. Slide the harness over your dog's head, buckle it up, adjust the straps, and off you go It is perfect for daily walking, jogging, hiking, training, outdoor recreation. Durable & Comfortable: The dog harness uses a durable outer layer of scratch resistant Oxford material which is super easy to clean, with long term use. Quick-drying and soft breathable lightweight mesh lining, keeping optimal comfort during outdoor activities, even for tactical training. Reflective Harness: With the reflective nylon webbing straps, the pet vest is visible in low light condition, keep your dog safe all the time, ensure good visibility when running at night. Gide Size: This dog harness has fully adjustable sliding straps, suitable for extra large to medium dogs such as Golden Retriever, Labrador, German Shepherd etc. Please measure chest and neck circumference before purchase (be reserve 2-3cm) S: Chest: 14.17-24.80 inch, Neck: 14.17-19.67 inch M: Chest: 15.75-28.35 inch, Neck: 13.35-21.65 inch L: Chest: 18.50-33.86 inch, Neck: 16.54-23.62 inch XL: Chest: 19.69-37.01 inch, Neck: 21.65-33.86 inch