CamelBaks Crux Lumbar Reservoir keeps your water positioned low on your back for excellent stability. Self-sealing Big Bite valve delivers 20% more water with each gulp. Large cap makes filling and cleaning simple, while an ergonomic handle allows you to fill it with one hand. Convenient on/off lever ensures leakproof performance. Integrated baffle delivers a low profile that fits easily into most packs and reduces sloshing for added stability and stealth. Hydroguard fights bacteria. Quick Link system features a shut-off valve so you can disconnect the tube for simple removal from your pack. CamelBak Got Your Bak lifetime guarantee. Size: 3 liters. Type: Hydration Packs.