An ergonomic and versatile harness developed for hiking, tracking and everyday activities with your dog. The harness has multiple attachment points for your dog's leash, making this harness very versatile. The Y-shaped around the neck allows free shoulder movement and minimal breathing restriction. In addition to the regular attachment point on the back, there is an attachment point for a tracking line under the chest. From size 3 and up, there is a third attachment point on the front for mild anti-pull control. It can also be used for canicross, interpretation and bikejoring for dogs that don't pull hard on the leash. Facts about Line harness 5.0:Adjustable around the chest. Easy to put on and take off.Solid Duraflex® buckles on each side. 3Mreflective details.Reinforced with Hypalon on exposed areas.