The Ortlieb Dry Bag is designed to protect your gear, for example, inside a backpack. The material is thin, highly flexible, and waterproof, making it ideal when used inside a pack, rucksack, or gear bag. If you're looking for a dry bag for activities like paddling or for mounting on a bike or motorcycle rack, it's recommended to explore Ortlieb's more robust dry bags by typing "Ortlieb dry bag" into the search bar of our online store. - Roll-top closure (45 rolls ensure waterproofing) - Material: Nylon - Diameter: 26.5 cm - Height: 42 cm - Made in Germany - 5-year warranty - Product number: K 20601..4