Mixed drinks aren’t just for post-race anymore. Finally, the ability to carry water and electrolyte drinks in one bladder. In response to requests from our ultrarunners who loved our race vest, but craved additional and creative gear-carrying capacity, the Synergy is designed for the runs, rides, and hikes when you need more than just water. 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. Description: - 2-way Propulsion Harness, - 100 oz (almost three liters) Synergy Bladder with Potency Dial and bite valve with on/off settings, - Water chamber has filter-compatible screw-top closure that is easy to fill, - Electrolyte chamber has roll-top closure that allows full access for easy cleaning and mixing drinks, - Potency Dial allows you to control intensity of your drink: all water, all electrolyte, or a combination of the two Potency Dial easily and securely clips to either right or left shoulder strap at reinforced attachment points, - Zippered main compartment with 750 cubic inch gear capacity - Dual front pockets – one mesh holster, one zippered - Power Stretch Mesh back pocket for jacket or gloves, - Vertically adjustable sternum strap with tube clip, - Honeycomb Mesh shoulder straps add comfort, prevent chafing, and dissipate heat, - Two mesh side pockets, - Lightweight, breathable Wall Mesh with soft perimeter binding that feels great against skin and won’t damage technical apparel, - Weight: 19.2 oz