We made our top-of-the-line load-hauling portage pack even better by adding a completely redesigned suspension system. This adjustable system, which can be removed for safe and easy transport, includes a breathable/waterproof back panel and shoulder straps, a sternum strap, and a heftier waist belt. The Pro Pack still features our watertight Dry Seal roll-top closure, along with a heavy-duty, 30-ounce scrim-reinforced vinyl bathtub bottom, 19-ounce scrim-reinforced vinyl sides, and a grab handle for easy lifting.