CamelBak Volt 13 LR Hydration Pack. If you love to go big on all day trail rides, the check out the new 2014 Volt 13 LR Hydration Pack from Camelbak. The Antidote Lumbar Reservoir loads through the back panel, which puts all the weight at the bottom of the pack for enhanced stability and a better fit. No more sloshing water or wobbling on big drops or big jumps. Lumbar compression straps tighten the pack to your back for a bounce free fit and waist belt provides even weight distribution. The Volt 13 LR's 100oz reservoir allows hydration for 3 hours, plus there's 600 cubic inches of gear space for a full day of cycling. LV back panel and Ultra Lite 3D Mesh Independent Suspension harness lessen the load while the heavy duty fabrics provide resilient performance.