Insulated picnic backpack with detachable wine duffel and deluxe service for 2, made of 600D polyester canvas. The original insulated picnic backpack, the Columbus, is perfect for the adventurous picnicker. Made from heavy-duty polyester canvas, this backpack is lightweight, compact, and very practical. It is outfitted with a detachable insulated wine duffel and all the amenities needed for a picnic for two. The Columbus was intelligently designed with pockets/compartments for all of its accessories. The large food compartment, featuring state-of-the-art Thermo-Guard insulation, will help keep your picnic hot/cold for hours. Great for picnics, hikes, concerts, and sporting events. Just pack it up and go!