You can't make water any lighter, so CamelBak gives us the Volt 13 LR pack. The Volt sits lower down on your back with a complete redesign of the Antidote bladder. Your center of gravity is a good bit lower, and the weight is evenly distributed and supported by your hips, something you really feel and appreciate, especially in steep or technical terrain. Plenty of water and carrying capacity makes this an all-day adventure pack. The pack itself weighs just over a pound complete with the airy LV back panel and 3D mesh Independent Suspension harness. When ounces and stability matter, this ultra-light pack delivers!