EXFIL-65 Dry BagUV-treated 500 sides and 1000-denier bottom is PVC-coated tarpaulin and is 100% waterproofIt works mounted vertically on a sissy bar, or laid down on or across a luggage rackMultiple tie-down points on each side and now eleven rows of laser-cut MOLLE give plenty of options for add-ons and mountingRoll-top closure with reinforced nylon quick-release buckles keeps contents sealed tight