Easy to Put on and Adjust: This Dog Harness is easy to put on and adjust with the buckles that adapt perfectly to all sizes of dogs. Two quick-release buckles that are not only easy to put on and take off, but also can withstand heavy tension. Anti-Pull Dog HarnessOur harness tactical dog has 2 D-shaped rings on the chest and back. Once your dog lunges forward, you can pull the chest ring to control him. When you walk with your dog, the ring on the back ensures less stress on the dog's neck. Durable Comfortable: The sandwich mesh lining is breathable and cooling. The durable outer layer of the dog harness, made of durable oxford material, is not easily scratched, durable and easy to clean. The MolleDecorative System: Our dog harness is equipped with a tactical Molle system so you can hook the hitch claws to carry light objects. You can also decorate your dog by attaching a personalized sticker to the hook and loop panel on the back. Size Guide: Size M: chest measurement: 56-84cm, neck circumference: 41-56cm, belly length: 26.5cm, back length: 18.5cm. Please measure your dog's neck and chest circumference to match the appropriate size.