Can be a backpack, drag the string to close the bag, and drawstring design allows you store things quickly and take them in and out easily, universal lightweight, reduce your shoulder burden, you nearly can’t fell its weight. The price includes the shipping cost to ca, 100% Satisfaction Guaranteed, if you don’t like the product or if something happens to it please return it for a full refund or a new one! We are GLAD to get SINGLE PIECE ORDER.