CamelBak Crux Water Reservoir Hydration Bladder

Edit, February 2026: So about 4 years later, the cap and seal somehow broke off. Now there's a hole in a bladder bag and the cap and thread are just separated from the bag. Not terribly upset because it lasted about 3 years and change with regular use. Original, November 2022: I purchased this about three years ago and have been using it ever since. I tend to drink a lot of water when I'm outside doing any kind of strenuous activity -- hiking, rock scrambling, running. This three liter reservoir is a great option to swap out the included smaller 1.5L and 2L bags that come with the packs that I buy. Very long hose ensures that you can use it with small day-packs, hydration vests, and backpacking backpacks, and nozzle works okay for sipping. Some people that have an issue with sealing and leaks -- I only had that problem in the beginning, but it's mainly because I wasn't sealing it right. You just have to make sure the cap is on securely before you start turning clockwise to seal it shut. If you do this, then you'll get a good and secure seal each time.

As always, this brand doesn't disappoint. Excellent product, works perfectly and never leaks.

Great. I use this for rucking. It’s easy to get a good amount of water per “sip”, and it holds a little over 3L. The material is good, it’s a thick-ish rubber thats smooth but not slick. It doesn’t leak. The cap comes on and off easily, you just twist it the same as any twist-lid, but it won’t undo itself. Rinse the thing out, including the tube, before actually using it. I say that because there’s a hint of a chemical taste at first, if you don’t. Overall great purchase, you won’t be disappointed. If you’re looking for a 3L Camelbak, id choose this one

Works great overall just be aware the blue ring on the cap can come loose, which causes leaks. Once it’s securely back in place, though, it seals perfectly and doesn’t leak at all.

As you age, hydration on hot summer days becomes vital to your health, especially when hiking more than six miles. I used to be able to hike 10 miles without the hike affecting my heart rate. Today, I have to be careful. The Camelbak Crux for the M.U.L.E. replacement is 100 oz and will keep you hydrated on extended hikes. Sometimes these don't come with instructions, so I'll leave this here. To seal the CamelBak Crux, turn the cap to the left until it clicks, then turn it to the right to seal the water pack. If you don't tighten the cap this way, the Crux won't seal, and your bladder will leak. Another tip is to buy a mini filter for the hose. This requires you to cut the hose during installation but enables you to collect and filter water from most outdoor park wells/drinking fountains without worrying about age or contaminants. Cleaning, on the other hand, is a bit harder. You have to clean and dry it after every use. If you don't, you'll get mold, and you'll destroy your crux.

I needed a replacement because my other one was old. Works great.

Exactly as advertised - Fit my old Camelback backpack. Used right away and it was great.

Replacement and upgrade for old original👍🏽

Muy buen repuesto

I have bought multiple Cambelbak bladders over the last 10 years and they keep me very satisfied. These are by far the best reservoirs on the market. The handle makes it easy to fill and close the opening. It is made from sturdy material and the bladder itself will keep the water pretty cool when stored in a backpack, even on hot days. I also have an insulation bag, but I never use it. When cycling in 32 degrees Celcius, that's 89F for you imperial speakers out there ;), it will keep cool in the backpack throughout the day. It never leaked when I used it. I can really recommend this bladder.

Indispensabile secondo me per lunghe uscite in montagna! La praticità di bere senza ogni volta cercare la borraccia o dover togliere lo zaino! Zero retrogusto di plastica, semplice da pulire grazie al tappo ampio, soddisfatto

I’ve used this CamelBak hydration pack twice so far, and I’m very happy with it. It doesn’t leak at all, it’s very easy to use, and it arrived very quickly. The drinking nozzle is also very well designed—it locks securely and is easy to use. Great product!

Sacca idrica top di gamma. Ho acquistato la camelbak da 3l adatta soprattutto per i trekking più lunghi ; il materiale non altera in nessun modo il gusto anche quando sottoposto a stress termici (caldo estivo/ freddo), l'erogatore è molto pratico e comodo, fornisce un buon apporto d'acqua. Punto di forza è sicuramente il tappo, permette di riempire la sacca e chiuderla in piena sicurezza senza che vi siano perdite. Assolutamente consigliata.