[Easy to Put on and Adjust]: This Dog Harness is easy to put on and adjust with the buckles which perfectly fits all sizes of dogs. Two quick-release buckles that are not only easy to put on and take off, but also can withstand strong tension. [Anti Pull Dog Harness]:Our tactical dog harness has 2 D-shaped rings on the chest and the back. Once your dog lunges forward, you can pull the chest ring to control it. When you walk with your dog, the ring on the back ensures less stress on the dog’s neck. [Size guide]: Size XL: chest circumference: 66-107cm, neck circumference: 51-79cm, belly length: 33.5cm, back length: 23.5cm. Please measure your dog’s neck and chest circumference to match the appropriate size. If you have any questions about choosing the size, please feel free to contact us. [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