The roll-top Dry Tube Bags by Overboard ($20-$50) sports a simple design that's extremely effective in keeping your gear high and dry while boating, rafting or fishing. The heavy-duty 420D nylon-coated tarpaulin with electronically welded seams, paired with the Fold Seal System makes this bag waterproof as well as float if accidentally dropped in the water. The Dry Tube also comes with a top carry handle and an adjustable/removable shoulder strap for extra portability.