Stylish and functional, the Peak Design Packing Cube has an expandable capacity for when your travel needs change. The unique tear-away zipper offers quick access to your contents, and the interior divider keeps wet or dirty items separate. Each compartment expands or contracts based on what you pack. The expansion zipper provides extra space or compresses your packed contents. The exterior shell is made from a self-healing, 70D nylon/poly blend that is tear resistant and weatherproof. The packing cube can be used as an organizer in any case or bag, but is designed to fit perfectly in Peak Design Travel or Outdoor Series backpacks and duffels.