The Trail 18 can be used as a backpack and as a drinking backpack at the same time. Due to its ergonomic shape it is great to carry while riding a motorcycle. Features unique Quadloc™ system durable Cordura® and Hypalon unrestricted freedom of movement of the arms easy to put on and off the belt front compartment with roll closure rear compartment with zip (can be used as a hydration system) Hypalon net for more storage from outside waterproof compartment 18 litres capacity Dimensions: 470 x 280 x 150 mm Weight: 1.630 g