Expansion Zipper to Increase Capacity. Durable expansion zipper means you can bring home even more than what you left with. Top carry handle for easy grab-and-go. Durable and resilient #5 self-repairing zippers sport climbing rope-inspired pulls. Pick up Pack-It Reveal Expansion Cubes to keep you organized every time you head out on an adventure! These easy-view packing organizers have a secret power: They keep you even more organized on your return trip! You see, they expand to pack in even more when your trip is through.