Expansion Zipper to Increase Capacity. Expansion zipper allows you to bring more home than what you left with. Top carry handle for ease of access. Ultra-durable self-repairing #5 zippers featuring climbing rope inspired cord pullers. Great for bulky items like layers, windbreaking gear and vests. Pick up a Pack-It Reveal Expansion Cube to keep you organized when you head, but also to keep you even more organized upon your return! You see, these cubes expand to pack in even more as you travel along. Local farmer’s market, anyone