An efficient packing solution, the Ultralight Dry Sack keeps your gear organized and protected within your pack or travel luggage with a rectangular shape for a better fit. Available in five different volumes and four colors, it's easy to color-code your organization too. Features Roll-top waterproof closure. Waterproof-coated fabric and seams. Rectangular shape for efficient packing. Meets IPX5, waterproof non-submersible. D-ring for drying or attaching. Build Your Own Packing System Part of a coordinated system for optimized packing. Customize your experience by adding on smart packing and organization accessories that meet your exact needs. Osprey Accessories Innovation All of our accessories have been overhauled to offer better organization, operation, comfort and reduced environmental impact. Sustainable Design bluesign® approved main body fabrics. GRS-certified 100% recycled main body fabrics. All DWR treatments made without PFAS. Fabric bluesign® approved 100% recycled 40D high-tenacity nylon. Size Dimensions 3L 22H X 16W X 14D CM 6L 29H X 18W X 14D CM 12L 35H X 22W X 17D CM 20L 41H X 26W X 20D CM 35L 53H X 33W X 36D CM