CamelBak UnBottle Reservoir

Priced: $29.95 - $49.00 Rated:   - 5 stars out of 5 by 14 reviews.
CamelBak UnBottle Reservoir
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CamelBak UnBottle Reservoir -
No more hunting for a water bottle! Slip the leak-proof UnBottle into any daypack or expedition pack to convert into a personal hydration system. Offers 2 to 3 hours of cool, clean water. This versatile insulated reservoir sleeve adds hours of hydration to any pack.

• ANTIDOTE RESERVOIR FEATURES: Quick Link System, 1/4 turn - easy open/close cap, lightweight fillport, dryer arms, center baffling and low-profile design, patented Big Bite Valve, HydroGuard technology, PureFlow tube, easy-to-clean wide-mouth opening.
• KEY PACK FEATURES: External fill, insulated reservoir sleeve, attachment points, carry handle / hanger loop, zippered tube access.
• CamelBak Got Your Bak Guarantee: If we built it, we`ll Bak it with our lifetime guarantee.
• Hydration Capacity: 100 oz / 3 L
• Total Capacity: N/A + 3L Reservoir.
• Total Weight (Pack and Reservoir): 5.3 oz / 150 g.
• Dimensions: 18 x 8.5 x 4 in / 45 x 22 x 10 cm.
• Fabric: 600D Poly with DWR & 1000 mm PU coating


  • Quick Link™ system lets you effortlessly add accessories such as a Fresh™ filter, insulated tube, tube director, flow meter or hanger (accessories sold separately)
  • CamelBak UnBottle features an air-light, wide-mouth port that cuts weight and makes it easy to fill and clean the reservoir; quick-snap cap tightens in just a quarter turn
  • External fill and refill without moving your reservoir
  • Improved buckles secure the CamelBak UnBottle insulated reservoir to the inside or outside of your pack; adjustable loop on the top features a quick-release buckle


  • Zippered tube access


  • 100 fl oz
  • Carry handle / hanger loop
  • Dryer arms
  • Folding arms lock into position to hold the reservoir open when drying; arms tuck out of the way around the port when not in use
  • PureFlow™ tube
  • Patented Big Bite™ Valve
  • Antidote™ Reservoir with Quick Link™ System
  • Newly designed Antidote™ reservoir features a welded center baffle and low-profile shape for stability
  • HydroGuard™ technology
  • Lightweight fillport

This BPA-free CamelBak UnBottle insulated reservoir adds 100 fl. oz. of hydrating fluid to your backpack. It features an updated reservoir with improved stability and quick-connect enhancements.


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Average Price History: Price History
Review RatingNumber of Reviews
Average weight - metric:0.15 kilogram
BPA free:Yes
Bite valve shut-off switch:Yes
Capacity:70 oz. hydration (2L) / 100 oz. (3 L) hydration
Designed to Carry:Water
Dimensions:18.5 x 8 x 1.25 inches
Liquid capacity (L):3 liters
Liquid capacity (fl. oz.):100 fluid ounces
Material:770 Diamond Clarus & 420D Nylon with DWR + 1000mm PU Coating
Quick disconnect tubing:Yes
Size:70 oz. (2 L) / 100 oz.(3 L)
Weight:70 oz (2L) 4.5 oz 130g / 100 oz (3 L) 5.2 oz 150 g
Weight - metric:0.15 kilograms
Wide-mouth opening:Yes
Compare specifications to related products.

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CamelBak UnBottle Reservoir Reviews:

Positive Reviews:

I like my water cold...

As my title states, I really like my water cold when I'm hiking and this product does the trick. I generally fill up the bladder with ice then top it off with water. Throughout the day the ice melts and I have a constant flow of cold water. With this insulator I had to cut back on the ice because I found myself running out of water and nothing but a bag of ice left.
My main reason for purchasing this insulator and the insulated tube along with it is because I plan on taking this to the summit of Kilimanjaro in March and I've read stories of folks bladders and bottles freezing up on summit day. Hopefully this will negate that problem.
My only two complaints with the system are, one, you have to remove the bladder from the insulator in order to fill the bladder to maximum capacity. If you leave it in the insulator I think the pressure keeps it from filling up completely. I'd guess you can only get about 75oz inside it if not removed first.
The second complaint I have is all the extra weight of the straps and clips on the exterior. I've really found no use for them as the bladder is always carried inside my backpack in the slot designed for it. I'm sure there's some people that will find the clips useful, they just are not for me. I've considered cutting them off/removing them but just as sure as I do, I'll want them back on. For now they stay in place.
SiriusDoggy at REI on 12/12/2011

Great addition to my hydration family

Bar none the best hydration bladder on the market. I have tryed various brands/setups of bladders and I this one is my favorite thus far. Camelbak improved their omega reservoir and produced this fatastic Antidote reservoir. Those of you framiliar with the omega will remember how frustrating it was to open but they have vastly improved it making it a quarter turn quick access mouth. But if you are still not statisfied they when out and put on a quick disconect hose to bladder mechanism thing making it easy to refil when using a filter beause all you have to do is use the mating valve from the filter and BAM! it wont leak or fall out when you are busy pumping.
The insulated sleeve is great as well because it protects the bladder if you were using it in place as a water bottle or if it was attached to the outside of your pack via the clip biners. Overall this is a great buy and made by a great name brand.
light bulbs at Campmor on 06/06/2011

CamelBak for Hot Days!

I have used other brands of hydration packs/bladders and I have found that nothing compares to the quality and durability of the Camelbak products.

I took this new insulated bladder on a six hour hike/trail run, and found that the water stayed cool throughout the entire day.

The quick disconnect tubing helps during the cleaning process and I love that you can add extra upgrades (such as a flow meter and a filter).

Another great feature that Camelbak bladders offer is the bite valve shut off switch, which prevents your pack from leaking all over the place (a feature I learned to appreciate after another brand of hydration pack leaked all over me during a winter hike).

The insulated casing that surrounds the bladder can be removed, but I found it difficult and was afraid that I would damage the item if I kept attempting to separate the two.

Overall, I would recommend this product.
BringtheDogAZ at REI on 01/01/2013

great reservoir

I used this reservoir for the first time on a ten-day trek through the Sierras. 3L was an excellent amount for a rigorous all-day hike, and my water stayed cool throughout! There is nothing like easy access cold water when watching your hiking buddies struggle to reach their canteens and bottles and spill warm water down their fronts trying to get a sip.
Reservoirs help me stay hydrated on the trail, keeping me safe and healthy and ensuring I can make it through long hikes.
I did not experience any leaking even though I had this crammed tightly into my pack with all of my gear. I didn't get any use out of the external clips...but perhaps will someday. As of now they are clumsy added weight.
earthtrekker at REI on 10/10/2012

Great cost effective alternative!

I took this on a 20 mile, two day solo trip to Big Bend National Park in Texas. I saw the prices on other Camelbak products and was convinced I would have to settle for carrying a few Nalgene's or something. Then I stumbled upon the Unbottle. The price is significantly lower than that of other Camelbak products with the same liquid volume capacity. And honestly, for a backpacking trip, there's no need for all the extra features of the traditional backpack style Camelbak. The Unbottle attaches with ease to the outside of a pack and stays out of the way, leaving room inside your pack for all the other things you have to carry along. Excellent buy!
John Jenkins at REI on 08/08/2013

Great to have!!

This reservoir is great for day hiking! I also look forward to using it for backpacking as well. Three liters goes a long way on a day hike and it is so nice to not have to worry about running out of water or having to carry around water bottles all day. And it is so easy to clean and maintain.

Having the 100oz is great because if I don't want or need all three liters I can only partially fill the reservoir and it still works great.
Sgirl2 at REI on 03/03/2013

Cold Convenience

Water is a necessity but cold water is a luxury. I use this bladder almost full in addition to a couple of canteens. Some ice cubes in the Camelbak and frozen canteens (half ice, half water) supplies cold refreshment for the entire day. The camelbak is so convenient for taking a break along the way (I have yet to master the drink-while-hiking technique.) The return trip is lighter and as the bladder becomes empty the canteens are still cold.
RHSCOS at REI on 08/08/2012

Works with my PFD

I bought this to use while kayaking. It works being attached to the PFD or on the kayak deck. However while on the deck the water tends to heat up more. The water stays cooler on your back but it is added weight to your back.
smokykoko at Campmor on 08/08/2011

bought 2 one for him and one for her

we filled these up with ice cubes and water and it stayed cold well into the next day of a ten mile hike. Fits well into our packs and stayed stable. I would reccomend this to any one looking for a hydration system.
Bob at Campmor on 04/04/2012

Perfect fit inside MC Tank Bag

I bought this product for motorcycle use. It fits perfectly in my Wolfman Explorer Lite tank bag with plenty of room to spare for my other personals I carry. The hose is just the right length for my application. (BMW F800 GS)
DabsAlot at Campmor on 10/10/2011

Neutral Reviews:

Very nice when it doesn't leak

I bought this in late 2011 and overall I'm quite impressed with the design changes that were made. I especially like the quarter-turn cap; my girlfriend's older CamelBak usually hurts my fingers when I try to get it open. I typically remove the bladder from its insulating cover to save weight unless freezing conditions are forecast, and in this configuration it's pretty lightweight (6.8 oz with the mouthpiece cap).

The Achilles heel of this bladder, though, is that quick disconnect for the hose. It leaks! Fill the bladder at least half full, turn it so water is inside the quick disconnect, then apply pressure (just as it would get pressurized inside a pack). I got a slow but steady drip-drip coming out on several attempts. It first manifested itself in real-world backpacking when I'd find a wet spot in the bottom of my pack, and I have seen many references to this problem elsewhere online.

I returned the first one I purchased to REI and got another, hoping I'd get lucky this time around. Without messing with the quick disconnect at all I repeated my test, and sure enough this one leaked too. But when I disconnected and reconnected the hose, the leaking seemed to stop. So for now the jury's still out. Just in case, I'll be keeping a little piece of chamois around the quick disconnect.

My recommendation is to wait until the next model. Hopefully CamelBak will fix this problem soon.
divestoclimb at REI on 03/03/2012