The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling of the bladder, and an on/off lever that makes it easy to prevent leaks. If there&&';;s one thing we know best, it&&';;s water. Our athletes, customers and colleagues told us they wanted a reservoir that delivered more water per sip, with a foolproof design that made it easy to fill up and hit the trail. The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. Like all of our gear, we put the Crux through exhaustive stress tests to make sure that it won&&';;t fail you on the trail. 100% free of BPA, BPS and BPF. Features Offers 20% more water per sip Leak-proof cap is easier to open and close On/off lever lets you seal your drinking tube shut with one hand Hydroguard(TM) technology inhibits the growth of bacteria in the reservoir and tube Big bite valve self-seals after each drink, eliminating annoying drips