SnugPak Aquacover 35 – Waterproof Rucksack Cover. Fits up to 35 liters. Olive green, lightweight nylon construction. Elasticated around edges to ensure a snug fit on any rucksack. Packaged in black, compact, lightweight nylon bag with cord and cord lock. Useful to keep your rucksack clean while adding a waterproof layer to protect the contents. Bulk packed. Snugpak products are currently in use with the British, USA and Australian Armed Forces.