Keep it dry, keep it organized, keep it light. The Osprey Ultralight Dry Sack protects gear from moisture with a roll-top waterproof closure and waterproof-coated fabric and seams rated to IPX5. A rectangular shape packs more efficiently than round alternatives, fitting cleanly inside a pack or travel luggage without wasted space. A D-ring handles drying or attachment duty, and four color options make color-coding your organization system easy. Built from bluesign® approved GRS-certified 100% recycled fabrics with PFAS-free DWR throughout. Available in five sizes. Overview Roll-top waterproof closure with waterproof-coated fabric and seams Meets IPX5 waterproof rating (non-submersible) Rectangular shape for efficient, space-saving packing D-ring for drying or attaching to gear Available in four colors for easy color-coded organization bluesign® approved GRS-certified 100% recycled fabrics PFAS-free DWR treatment Specifications Size Volume Dimensions Weight 3L 183 in³ 6H x 6W x 8.66D in. 0.062 lbs. 6L 366 in³ 6H x 7.09W x 11.42D in. 0.075 lbs. 12L 732 in³ 6.69H x 8.66W x 13.78D in. 0.101 lbs. 20L 1,220 in³ 7.87H x 10.24W x 16.14D in. 0.132 lbs. 35L 2,136 in³ 14.17H x 12.99W x 20.87D in. 0.174 lbs. Materials Main: bluesign® approved 100% recycled 40D high-tenacity nylon. All DWR treatments made without PFAS. Design Features Roll-top waterproof closure Waterproof-coated fabric and seams Rectangular shape for efficient packing D-ring for drying or attaching IPX5 waterproof rated (non-submersible) Part of Osprey's coordinated packing system Care Instructions Rinse with clean water after use. Air dry completely before storing. Do not machine wash or dry clean. Simple, smart protection — part of a packing system built to keep everything in its place.