The Dog Helios ® Freestyle 3-in-1 Explorer Sporty Convertible Waterproof Dog Backpack Harness is a Backpack that Doubles as a Chest Harness with an Included dog Leash. This Only-of-its-kind 3-in-1 Backpack, Harness and Leash features a Backpack with a Chest Compressible Harness that completely ejects from the Backpack that enables the user to remove the backpack as the user wishes. The Dog Backpack Harness features a special DUPONT Outer-shell that is entirely Waterproof including the zippers. The Outer shell of the Backpack further features reflective-tubed lining all around with added reflective memorized stitching along the DUPONT Nylon material for premium protection during those night strolls. These dog backpack harnesses features both a Neoprene and Waterproof DUPONT exterior with a breathable and visible cross-stitched inner mesh Outer and Inner lining for optimum comfort. The Chest Compression Harness is also fully adjustable and places little-to-no stress at the sternum area o