Size: Neck Circumference: 46-66cm; Chest Circumference: 43-86cm. Recommended breeds: medium and large dogs, such as Golden Retriever, Huskie, Labrador, Alaska, German Shepherd, Akita, etc. Let your dog stand out with this classic Black harness! Please measure your dog's neck and chest before purchasing Anti-Pull Design: Specially designed with 2 metal leash rings for safe dog walking. The chest ring is used for training the dog and wearing the other one on the back is to avoid pulling on walks. Don't worry about getting loose or choking Easy to Put On: Easy to put on and take off with its quick release buckles. Slide the harness over your dog's head, buckle it, adjust the straps, and here it is! A perfect option for daily walking, jogging, hiking, etc Full Adjustment: This "Y" shape harness has 4 adjustable straps around the body. You can use its 2 neck straps and 2 chest straps to create a perfect fit for your dog with some room for growth Safety: The soft, breathable mesh filling material keeps a dog cool, minimizes the possibility of from getting hurt in the event of pulling and maximizing the animal's comfort. The straps have reflective lines that offer good visibility in the dark, reducing accidents and protecting the safety of your dog