Camelbak Crux 2L Reservoir Stay hydrated with little hassle with the Camelbak Crux 2L Reservoir. The leakproof and easy open cap will make it exceptionally easy to dip into when out on the trails. The Crux 2L Reservoir is back with an improved and ergonomic shape. This will mean that the reservoir can be stored discreetly in a bag. Extremely durable and tough, the bag is able to expand, be stretched and be subject to bumps without any lasting damage being caused. The bag is leak proof, which means you will always be able to get the most out of the reservoir. This will also mean that you will be able to carry it in your bag without worrying about it spilling on other items on your bag. The cap will tighten to also prevent leaking. The big bite valve will allow you to take in 20% more water per sip than previous models. The valve will also self-seal after each sip eliminating the risk of drips. Using HydroGuard technology inhibits the growth of bacteria in the reservoir and tube, keeping the water clean. The plastic is BPA, BPS and BPD free, which makes the reservoir better for the environment as well as keeping the taste of the water pure.