. . . . . . . . "Hydration pack"@en . "Hydration packs are commonly used for outdoor recreational activities, such as hiking, bicycling, and kayaking, as well as for military maneuvers, often dubbed the Camelback hydration system[citation needed] or camel bag[citation needed] in this context. Hydration Packs are used by various militaries;[citation needed] the British Army, for example, has been attempting to incorporate water filtration into the system. [citation needed]"@en . "Hydration packs are commonly used for outdoor recreational activities, such as hiking, bicycling, and kayaking, as well as for military maneuvers, often dubbed the Camelback hydration system[citation needed] or camel bag[citation needed] in this context. Hydration Packs are used by various militaries;[citation needed] the British Army, for example, has been attempting to incorporate water filtration into the system. [citation needed]"@en .