Dog Harness Size L: The chest circumference of the harness is 38-90 cm. Suitable for medium to large dogs: for example, Golden Retriever, Labrador, German Shepherd, Billy Bulldog, etc. Before purchasing, we recommend measuring your dog's maximum chest circumference, as well as your dog's neck circumference and weight (Please refer to the size chart) Anti-Traction; Anti-Suffocation: Our anti-pull dog harness distributes the pulling force evenly and does not put pressure on the dog's neck, making it anti-pull and anti-choking. It also has 2 zinc rings on the chest and back of the harness, suitable for forward and reverse walking Easy to put on and take off: This dog harness is easy to wear and adjust. Quick-release buckles ensure ease of use when putting on and taking off. Adjustable chest and neck straps allow for a personalized fit for your furry friend. Perfect for walking, running, jogging, outdoor fun, etc Safer: The nylon dog harness is very strong and made of reflective material to keep your dog safe during night trips. The back of the harness has a sturdy handle designed so you can easily grab it and protect your dog in an emergency Comfortable Fabric: Our anti-pull dog harness is made from durable, allergy-resistant and very breathable Oxford fabric. Breathable mesh lining and soft foam padding prevent injuries and provide extra comfort and protection for your dog