Without traction or amp; No strangulation: 2 sturdy metal rings with reinforced seams for safe walking with dogs. You can attach the chest ring to control your dog when pulling. The ring back for casual walking, jogging, hiking, etc. No strain on the dog's neck, the pressure is evenly distributed across the entire body to prevent pulling and choking. And the vertical handle helps you control and help your dog. Easy to carry & Rule: This dog harness is easy to put on and take off with quick and easy buckles. Fully adjustable chest and neck straps allow for a personalized fit for your four-legged friend. Slide the harness over your dog's head, buckle it, adjust the straps and that's it! It is perfect for daily walking, jogging, hiking, workout, outdoor recreation. Comfortable: The dog harness uses a durable outer layer of scratch-resistant Oxford material that is super easy to clean, with long-term use. Breathable mesh lining, quick-drying and soft and lightweight, to keep comfort during outdoor activities, even for tactical training. Reflective Harness: With reflective nylon straps, the pet vest is visible in wet and low light conditions, keep your dog safe at all times. , ensure good visibility when running at night. Gide Size: This dog harness features fully adjustable sliding straps, suitable for medium to large dogs such as golden retriever, labrador, German shepherd, etc. Please measure your chest and neck circumference before purchasing (reserve 2-3 cm) XL: Chest: 68-93cm Neck: 60-79cm