GoGo Comfy Nylon Harnesses are simple to adjust and since they are a step-in harness, they are quick and easy to get on and off your dog. All of the straps are adjustable, including the center strap down the chest, so GoGo Harnesses can be customized to fit any dog. Each harness features two D-rings, one on either side of the heavy plastic snap-lock buckle, giving you steady control over even strong pullers. We've added even more stability to each harness by using a unique piece of hardware with a separate slit for each strap, instead of the standard O-ring. This limits the movement of the straps, which keeps your dog more comfortable and keeps the harness steady and secure. With a variety of colors and sizes to choose from, every dog can look fashionable in their GoGo Harness.