This Heavy Dry Bag from outdoor manufacturer Sea to Summit is a space-saving outdoor pack sack designed for extreme use. Thanks to its oval bottom, the pack sack can stand upright without tipping over. It is waterproof, equipped with double reinforced and sealed seams, and features a Hypalon attachment point for securing the pack sack. The waterproof Hypalon roll closure provides additional security. The space-saving, practical, and robust design is made from extremely durable 420D nylon, which is TPU-laminated and waterproof up to 10,000 mm water column.