Keeper 07203-1 Waterproof Roof Top Cargo Bag (15 Cubic Feet)The Keeper Waterproof Roof Top Cargo Bag protects your gear against road grit, sun, wind and rain. With 15 cubic feet of space, this pack lets you add additional cargo room when you need it most. Its four cambuckle straps provide excellent attachment security at highway speeds.Waterproof rooftop cargo bag with 15 cubic feet of spaceIncreases vehicle cargo spaceWaterproof design protects cargo against road grit, sun, wind and rainSoft sides flex to fit odd-shaped loadsFolds compact for easy storage