Our tactical dog harness is easy to use.It can maximum adjustability,6 fully adjustable straps for a perfect fit. Additional Belly Straps can be fed into the slider.It can maximum Control.Two Metal Leash Rings.Metal clips can withstand a lot of pulling force.Sturdy material brings you a sense of security.Hook&Loop Panels:Feel free to stick your favorite velcro to decorate your dog.Elastic Band Design :You can put your bottle,easurement first step Important Prompt: Please measure your dog carefully before the purchase. Refer to the product image for the detailed size chart. Let us know anytime if you're not sure about the size, or you find the harness doesn't fit your dog well. Adjust the webbing Loosen the webbing, stretch it to a suitable position, and cross the ring and stick to the vel-cro strap.Insert the 4 buckle clips.Insert the buckle one by one. Tips:Please press the trigger if you want to open the buckles large dog harness Adjust the straps Adjust the Chest and Belly Straps accordingly to fit your dog's body.Buckle up on both sides of the belly. Tips: "2-finger rule": You should be able to fit 2 fingers between your dog's body and any part of the harness.