Built of 100% waterproof 500-denier PVC tarpaulin with airtight RF welded seams, Grundns extra-large Gage Shackleton 105L Duffel Bag keeps the elements out while youre exploring. Hook-and-loop, roll-top closure offers easy access to the generous main compartment. Compression straps keep your load tight and secure while youre on the move. Converts from a duffel into a backpack with hidden backpack straps. Imported. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Dry Bags.