The Aquapac Stormproof Padded Drybag is a pack for carrying a laptop or other valuables on the water. Constructed from 70D polyurethane / PU-coated ripstop nylon with taped seams, this is a pack built to last. The roll-down seal will keep out any rain, mud, or spray on a kayak. While it's not recommended that you submerge the pack, the seal system will protect against accidental dropping into puddles if the pack is retrieved quickly. The bag is also foam-padded for protection against minor knocks and bumps. It features a convenient lashtab for tying down to a deck or luggage rack. The adaptable shoulder strap gives you the freedom to carry the pack as you like. The drybag is just big enough to fit a 17 (43.2 cm) laptop.