The Dog's Fun Run offers full freedom of movement for all activities. The long cut of this harness offers optimum shoulder and elbow room so that your dog can move freely. Our harnesses are made from a special triple-laminated fabric, so there are no pinching seams. Thanks to the ergonomic cut, the belly straps can be adjusted very loosely and the dog feels no pressure on the spine. We use high-quality, sturdy buckles that can withstand heavy loads.