Document Bag The waterproof document bags available in three formats are ideal to store things which are sensitive to water, such as card material, filter bags, travel guide, travel documents, writing paper etc. They consist of the same flexible, non-cracking; tear proof and transparent fabric as the ORTLIEB map cases. A special manufacturing guarantees seam welds as strong as the plastic itself. Opening and closing is simple, too: just roll the fastener and close the Velcro. Note:When exposed to strong UV light for a long period of time, the plastic material of the map cases and document bags may turn a bit yellow: however, this has no effect on the material's function or quality. Alternative plastics score less well in more important criteria. Size : A4 ( 30 x 22 cm )