1 x 13 Litre. The Exped Classic Fold Dry Bags are waterproof storage bags with a fold top closure. The Fold Dry bags are made from a seriously durable PU-coated Taffeta nylon, with a 10,000 mm hydrostatic head, and taped seams to ensure no leakage. You have a grab handle right at the bottom to help get your gear out and it comes in a variety of different sizes and colours. The Bright inner PU coating lights up the interior of the bags.