With our solid Barren 18L H2O backpack, you won't have to leave any belongings at home on a short or long adventure. Developed in collaboration with luggage expert Kriega, this backpack is designed to take on any challenge packed and ready. It is packed with gadgets to protect your gear while providing comfort and hydration. This backpack consists of a waterproof 11-liter main section, a 7-liter rear compartment, and an additional luggage section behind the external Hypalon net. The easily accessible waterproof roll-top main section provides 11 liters of capacity for everything you might be shy of while on the road. The 7-liter zippered back section can be used for a tool roll, bottle of water or the optional 3.75-liter Hydration Reservoir. This back section is also equipped with a 1 liter small waterproof inner pocket for the most valuable items. The innovative Hypalon net with elastic cord provides additional storage space for clothing or wet clothing layers to dry while riding.