The Briggs & Riley ZDX Convertible Backpack Duffle bag is a dynamic, all-in-one carry-on engineered to perform on any adventure. Enjoy a duffle-style experience with its clamshell opening and side handle, or go hands-free in backpack mode with its straps, padded back mesh, and locking zippers. An inch of expandable space ensures you can pack without compromise, a compact design fits under most airline seats for truly flexible travel, and road-ready reliability stands up to anything