Camelbak singlehandedly invented the back pack hydration system. So much so that the word "Camelbak" has become the generic term for the device that allows the user to carry a reservoir of water on his back and drink through a tube on demand.
The idea started with a cyclist competing in a 100 mile road race in Texas in 1989. His idea was to put an IV bag in a tube sock and tuck the whole thing into his jersey pocket with the IV tube running to his mouth. Based in Marin county California, Camelbak has innovated this technology continually until the present day with an entire product line of hydration systems for the cyclist and extreme sports enthusiast. Each pack has a unique configuration of cargo and water carrying capacity for a variety of disciplines.