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Mixed drinks aren't just for post-race anymore. Finally, the ability to carry water and electrolyte drinks in one bladder. The unique Synergy bladder carries water and electrolyte/energy drink in separate chambers, and the Potency Dial allows you to choose pure water, electrolyte drink, or your preferred combination of the two throughout your adventure. 100 oz.(almost 3 liters) Synergy Bladder Zippered main compartment with 750 cubic inch gear capacity Weight: 19.2 oz.