The flagship of the Camelbak brand is a backpack with a hydration reservoir inside. The predecessor of this reservoir, by the way, was responsible for the creation of the entire company. Before a cycling race in the scorching August Texas heat, racer Michael Eidson solved the problem of how to stay hydrated while riding. He solved it simply - from an infusion bag filled with water, hidden in a sock and placed in a back pocket, he created the first primitive camelbak.
This solution proved effective, so it's no wonder it quickly gained popularity among racers. Other athletes gradually joined in, and the brand's success was unstoppable.