CamelBak Antidote Reservoir

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I'm not sure this is the antidote. While I appreciate…

Rating: rated 3 of 5 stars
Source: bought it new
Price Paid: about $34


I'm not sure this is the antidote. While I appreciate a number of the features that Camelbak has added to this system, it has a persistant moisture problem that I have not been able to solve. Though the problem is more of an annoyance than a failure, it represents a decline in quality for me. There may be better options.


  • durability of reservoir
  • easy to open, close, fill, dry
  • bite valve
  • baffled so water does not slosh


  • persistant leak or moisture buildup at hose/bladder connection

i purchased this bladder to accommodate family hikes. we have two other older-style camelbak bladders that have both been very good products. this one is good in many ways but has an annoying flaw.

The 3 liter size is great for longer hikes.  for a full day hike in hot weather, i sometimes have to fill it mid/late in the day, but i sweat more than most.  the wide mouth makes it relatively easy to fill.  the top twists open in a quarter turn rather than a 3/4 to full turn, and it is marked on the mouth of the bladder so you match an arrow with a dot, then twist.  this 'short twist' top feature is a mild improvement over the previous versions.  i have experienced no leakage via the twist top in this or any other camelbak bladder.

the top also has a pair of folding 'feet' that hide around the mouth of the bottle.  these are supposed to help you dry the bladder in between uses, apparently.  because i hang the bladder to dry it out, i don't think the feet were necessary for me, and i have only used them once.

a significant improvement is a baffle placed inside the bladder.  in general, larger water bladders can make a watery, sloshy noise and shift around while you walk; the bladder significantly limits this and also means this bladder has a slightly flatter profile than previous versions.  i like this enhancement.

the bladder has a releasable valve at the point where the hose enters the bladder.  you pinch the valve and can remove the hose.  in theory, this seems like an improvement.  it's easier to remove this hose than it was on previous versions of the camelbak bladder, an improvement for cleaning the hose.  however, re-inserting the hose can be a chore — it isn't very easy to do, and it would be pretty easy to not seat the valve correctly and end up with a leak.  i find reinserting the hose on this model to be pretty annoying.

a more serious problem is the amount of moisture generated by the bladder when it is inside a sleeve in my backpack.  at first, i thought this was a leak, and it is possible that pressure is causing a small amount of water to leak from that valve.  after much testing, however, i believe that the moisture is most likely condensation on the hard plastic surface of the valve, at the point where the hose hooks up. 

i normally fill the bladder the night before a long day hike so it's cold when i take off in the morning.  i believe that cold water is what creates condensation on the outside of the valve. when i put room temperature water in the bladder, i don't generally get the same moisture buildup. 

the moisture buildup is annoying.  after a few hours of hiking, the bottom of the bladder sleeve and the bottom of my day pack feel rather damp — requiring me to hang the pack and dry it out.  my old camelbaks did not have this issue.  in the balance, i think the low-tech hose attachment on the previous models is simpler and more secure and less fussy, and that whatever convenience the new attachment might have offered is outweighed by its flaws and difficulty of use. 

durability has not been an issue with this bladder or any other camelbak that i have used.  the bladder and hose are built to last and have never failed for me. i occasionally experience bite valve failure, but it usually means my youngest daughter was using the bite valve like chewing gum! even the hose/bladder valve attachment, while it requires a great deal of wiggling and pressure to reinsert the hose, has not broken or bent in any way.

i have used this bladder on many hikes and over 200 workouts. i highly recommend emptying the bladder not long after using it and allowing it to hang dry. remember to squeeze the bite valve and empty any water from the hose, too.  occasionally, i use a long pipe-cleaner (separate kit camelbak sells) to clean the hose. with regular drying, i have never had the clean the interior of the bladder. 

Manufacturer's Description

Visit CamelBak's Antidote Reservoir page.

Retailers' Descriptions

Here's what other sites are saying:

Camelbak Antidote ReservoirReplenish your thirst during various outdoor treks with the Camelbak Antidote Reservoir. You don t need to worry about your drink to leak or spill out inside your pack when you re on the trail with the Antidote s quick-snap cap that tightens by quarter turning it. The Antidote has a low-profile fit that gets rid of awkward bulkiness, so carrying it won t make you feel unstable. It is equipped with air-light fillport that reduces heavy weight load, preventing it from irritating you. So when you re heading out for the great outdoors, you can always count on the Camelbak Antidote Reservoir to keep you hydrated during those long hiking adventures under the sun.

- SunnySports

The Antidote 70 Hydration Reservoir is a 2 liter capacity bladder with a superior bite valve, low profile design, and the exceptional quality and ease of use CamelBak is known for. The CamelBak Antidote 70 Hydration Reservoir is the reason why "CamelBak" is synonymous with hydration bladders. Quick snap cap tightens with a quarter turn for easy opening and closing. A low profile fit sits in your pack without bunching up or slouching. The air-light fill port saves weight over traditional designs. Quick link system lets you easily detach the hose. Includes CamelBak's excellent bite valve for easy drinking. CamelBak's Got Your Bak Guarentee lifetime guarantee means they back up their products. This two liter hydration reservoir is perfect for most outings on the bike, in the snow, or in the backcountry. Volume: 2 L or 70 oz. Dimensions, empty: 13.5x8 in (34.3x20.3 cm). Dimensions, full: 12.75x7x2.375 in (32.39x17.78x6.03 cm). Available Color(s): CamelBak Blue

- Tahoe Mountain Sports

Capacity: 100 oz (3 L)The new Antidote(TM) Reservoir with Quick Link(TM) System-- the ultimate cure for dehydration.Antidote features: - Quick-snap cap that tightens in just a quarter turn- Low-profile fit for unmatched stability- Air-light fillport cuts weight -All Antidote reservoirs sold as a separate accessory include the Quick Link System.-100% BPA-Free CamelBak(R) Got Your Bak(TM) Guarantee: If we built it, we'll Bak it(TM) with our lifetime guarantee. Cleaning Tips: The best way to care for your reservoir is to clean and dry it after every use, especially if you fill the reservoir with anything other than water. However, if a reservoir has not been cleaned after every use, and mold or discoloration develops: 1. Use hot water and a CamelBak Cleaning Tablet. (Or use 2 tablespoons of baking soda or bleach instead of CamelBak Cleaning Tab.) Mix the solution inside your reservoir and elevate the reservoir above the tube and Big Bite Valve. Pinch the bite valve, allowing the solution to flow into the drink tube and fill the bite valve. 2. Let the reservoir and cleaning solution sit in the reservoir and drink tube for about 30 minutes. 3. Wash the reservoir with hot water and mild soap. Be sure to completely rinse away the cleaning solution in the reservoir and drink tube before using again. You can also use CamelBak brushes from our Cleaning Kit to scrub your reservoir and drink tube. Brushes are the best way to ensure you are scrubbing all of the areas of the reservoir clean. 4. Once the reservoir is clean, be sure to air dry overnight so no moisture is trapped inside, which can cause mold to grow.These steps will make your reservoir safe for use. If there are still spots left behind, these are permanent mold stains that may not be removable. However, your reservoir is still safe and usable after you've cleaned it.

- Mountains Plus

Upgrade or replace your 50 oz (1.5L) reservoir with the Antidote? Reservoir -- the ultimate cure for dehydration. The new Antidote? Reservoir with Quick Link? System-- the ultimate cure for dehydration.

- RockCreek