Crux™ 3L Reservoir Accessories
Crux™ 3L Reservoir is rated 2.2 out of 5 by 24.
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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.
Got Your Back Guarantee


  • 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™ technology inhibits the growth of bacteria in the reservoir and tube
  • Big bite valve self-seals after each drink, eliminating annoying drips
Product Detail


  • Capacity: 3L/100 fl oz
  • Closure: Leakproof
  • Collection: Reservoirs
  • Activity: Accessories
  • BPA/BPS/BPF Free: Yes
  • Dimensions: 46 x 23 x 8 cm / 18 x 9 x 3 in
  • Material: Polyurethane
  • Weight: 235 g / 8 oz
Rated 1 out of 5 by from Can you make something that doesn't leak? I was a huge fan of Camelbak bladders back in the early 2000s when the design was simple and the top was an extremely solid screw-on. Since about 2008 or so, Camelbak keeps over-engineering tops that don't lock dependably. I'm sick of leaking bladders getting the contents of my pack wet. And with the release of the Crux and the new-sized hose, all previous accessories are now incompatible. And the top still leaks. To quote a popular meme, "YOU HAD ONE JOB!" (And you blew it.) Please go back to basics. Go back to the old hose and come up with a simple screw top that reliably keeps water inside the bladder with no leaks.
Date published: 2019-01-04
Rated 1 out of 5 by from Leaks Horribly This bladder came with my CamelBak M.U.L.E. It leaks horribly. We've attempted to use it 3 different times and each time it is a struggle to get the cap on the right way. And even with the best attempt, it will still leak. And this slight leak is enough to cause the inside of your bag to be fairly wet. CamelBak - you really should compensate people due to this horrible design. The washer part of the lid doesn't even fit the right way to create a seal. It is too big to seal both on the bladder itself and for the lid. The picture shows me holding the washer even on one side which shows it too big on the other side. Extremely poor design.
Date published: 2018-06-23
Rated 1 out of 5 by from Leaks - Nothing more to say! I bought on the name and reputation of Camelbak and could not be more disappointed. the plastic gasket which is meant to be the O-ring for the twist cap does not fit at all. It is too big, and slips off the threads when you tighten the cap. A quality driven company would issue a product recall, or send out repair gaskets to all who own this defective product. I hiked a 31 mile same day hike and needed to find sources of water and refill regular in the mountains because this product from Camelbak is either defective, or poorly designed. I'll never purchase another camelbak product unless this is resolved. I'll be sure to tell all of my friends.
Date published: 2019-09-09
Rated 3 out of 5 by from Frustrated by the New Tube Diameter w/ No Support This new design is robust and nice. A marked improvement over the prior generation... but you can't just change the diameter of the tube from 1/4 that is an industry standard without simultaneously providing solutions to the problem such a change causes. Every accessory out there is now obsolete because it's a fun marketing tool to say, "20% more water per sip." My Katadyn Hiker Pro water filter worked seamlessly with the last generation, because I could plug it into the reservoir without ever even taking my pack off my back... Now I've cut this tube for the quick connections and they just slip through. So now I have a tube that is garbage and I can't find a quick connect fitting to fit this new tube because, again, no one, NOT EVEN CAMELBAK, supports this size. Short-sighted and really disappointing. Please correct this. It's impacting your consumers. This is my third reservoir purchase from Camelbak. I've been loyal, but this kind of stuff makes our relationship tenuous.
Date published: 2017-08-16
Rated 2 out of 5 by from Lacks backward compatibility I enjoyed the earlier design better for the reasons already described above. If it ain’t broke, don’t fix it!
Date published: 2018-05-11
Rated 4 out of 5 by from Great but dry system is missing I bought the last crux reservoir since my previous Crux one, after several years of intense use, showed leaks around the lid. I'm very surprised the dry system (plastic arms) is not more included to the product. It was very useful and I miss it. So, despite the improvements, it is not as great as it was.
Date published: 2017-06-12
Rated 2 out of 5 by from Leaks Looks nice, but why is it hard to have a cap that seals? If you lean forward (touch toes, pick up something on ground), basically any time the bag is upside down it leaks...a lot. Disappointing for sure.
Date published: 2018-02-11
Rated 1 out of 5 by from Horrible Design 00 Stars should be option here Leaks like a seive
Date published: 2018-07-08
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