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Turn water into liquid gold for your dehydrated body with MSR Hydromedary Hydration Bags.

The newly-designed Hydromedary Bags are MSR's most durable hydration systems. MSR built the Hydromedary Bag out of tough 200D cordura to take the abuse of the trail. These Hydromedary Bags come complete with a drink tube, a high-flow no-leak bite valve, and a low-profile easy-fill handle. Slip a Hydromedary Bag in your backpack for an instant hands-free hydration system.

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Here's what others have to say...

4 5

Great Bladder

  • Familiarity: I've used it several times

Very well made. Fits well inside almost any back pack. Durable and easy to use. This is a very light weight and necessary addition to anyone's pack. It will stand up to the rigors of the trail

4 5

Great bladder

  • Familiarity: I've used it several times

I run these in my Mystery Ranch and love them. Never had a leak.

I hang them, leave the cap off, fill them and drop some Alka Seltzer in them to kill the factory funk.

The cap needs a dummy cord, but that is easily done after purchase.

2 5

my butt hurts

bought two MSR Hydromedary Hydration Bag. one had a faulty molded cap. requested a new bag. cap good on that one but bag leaked. between the two systems ended up with one good bag. caps difficult to screw on. `easy to cross thread. price keeps going up, quality down.

1 5


  • Familiarity: I returned this product before using it

Rinsed with warm water before using. Couldn"t stand the odor when I poured out the rinse water. The bag still smells. Reminded me of an old Dromedary I have from many years ago, thought MSR would have figured out hydration bags like so many other mfg's. Returning.

5 5

Sick of leaky Hydration systems

  • Familiarity: I've put it through the wringer

After problems with Osprey Hydraulics compatibility and leaking camelbaks, I decided it was time for a new brand. This bladder has done great so far. It is made of much tougher material than others, and its valve is very straight forward. The bag itself is very easy to store. I would trust this Hydration system to hold out for 5+ day backpacking trips.

5 5

This bag has it all.

  • Familiarity: I've used it once or twice and have initial impressions

I bought the 2.5L and have used it for practice hikes getting ready for two three-night trips in Utah this May. Right out of the package it was easy to fill and easy to get situated in my pack. It is the most durable bag I looked at and even lighter than most of the CamelBak and Platypus bags I compared it to. Weight is a big concern for me for overnight trips and am impressed at the durability of this bladder for how lightweight it is.

I have managed to get a tiny, tiny hole...

I have managed to get a tiny, tiny hole in my bag. It is not even visible to the naked eye but obviously still big enough for water to slowly seep out. Do you know if it is possible to repair it somehow? I tried a bicycle tube patch but it didn't work.

Thank you!

Best Answer Responded on

As long as you know where the hole is located, specifically, what I would recommend is this:
Make sure the bag is completely drained of water, then take an alcohol swap/prep pad to clean the area of all dirt and grime (scrub this thoroughly), then take a Tenacious Tape patch ( and place that hole in the center of the patch, press firmly to confirm it seals completely, then test.
TT is pretty bombproof, I would definitely try that before you throw duct tape or something on it and get that adhesive all over it.

Responded on

A Sleeping pad patch would probably work relatively well. Many pads are a similar material on the outside so the adhesive/patches should be compatible.

5 5

Durable & Well Built

  • Familiarity: I've put it through the wringer

This is the best hydration bag I've purchased, by far. Super light, but well built, and I never worry about it puncturing or leaking. The Nalgene style lid is also a plus, as it allows easy access for adding water, attaching a filter, or drying it out. I had the older model (clear, more plastic-like) which lasted 4 or so years before leaking, but I've not encountered that problem with this bag.

5 5

Best personal dromedary bag out there.

  • Familiarity: I've put it through the wringer

I have been through a few of the hydration bags and the things that tend to fail is the mouth piece or the bag itself. Well the MSR hydromedary bag has stood the test. It came with me to Patagonia, Chile for a month long kayak expedition and came out unscathed. It came with me on a month long mountaineering expedition also in Patagonia, Chile and survived without a problem. It has since come with me on extreme adventure races and week-long paddling expeditions in Florida on coastal waters and inland rivers. I use it to hydrate obviously, but also to cook and clean. Granted I am not negligent of my gear and don't leave a vital item like this lying on the ground to be stepped on and punctured, but I do take it on trips to places that put an essential piece of gear like this to the test in all the elements.

5 5


  • Familiarity: I've put it through the wringer

The material they used for this hydro bag is sick! i strap it to my back with paracord and never worry about it getting ripped or caught on anything and leaking. bottom line, buy it !

5 5

My NEVER-FAIL, go to hydration system.

  • Familiarity: I've put it through the wringer

This is my third MSR Hydromedary. My third you ask? It is because I gave away the first two to folks who came out into them-there-mountains with other Brand-Name" bladders only to have them fail resulting in backpacks full of wet clothing, tents, sleeping bags, etc. I have backpacked and hiked throughout Colorado and California and most recently with a bunch of guys on an annual hike into the Indian Peaks Wilderness Area. During each trip, without exception, someone has had their bladder of choice blow-out. Not me. There are I suppose only a few things that can go wrong with a bladder, but when they do, one is in a world of hurt. The materials (very durable) and workmanship are exemplary and the service from is equal to the product. Since I go through water rather quickly, the 3L is a great size and I do not notice the added weight nor have I every worried about running out. I have not noticed any taste imparted by the bladder and it NEVER has leaked. NEVER. If you cannot guess, I highly recommend the MSR Hydromedary and

Is the one on the left, the shortest,...

Is the one on the left, the shortest, fattest one, the 2.5L or the 2.0L? MSRs website says the 2.5L length (14.5") is shorter than the 2.0L (17"). ?

Trying to determine which size will fit well in my marmot pack. Thanks!

Responded on

The one on the left is the shorter 2.0L (17")

Best Answer Responded on

According to the MSR website, the one on the far left (shorter, wider) is the 2.5L, the middle one is the 2L, and the far right is 3 L.

5 5


Heavy duty construction. Takes a beating with no problem. The 3L fit great into my North Face Big Shot daypack as well as my Osprey Atmos 65 backpack. Got smashed in the car, tossed on granite slabs, and suffered through freezing weather without a problem. The small snap tube clip was a joke but replaced that with a chest strap magnet and no issues.

Responded on

I dont have have any of these but I keep seeing people with them and they make me jealous haha. Worth the money im guessing?

Kelty Ravin 2500
Which size will fit the...

Kelty Ravin 2500
Which size will fit the kelty raven 2500?

Responded on

The: 2.5 LTR (Length- 14.5 in / 35.5 cm)
The Kelty Ravin 2500 (Height: 14 in / 36 cm)

5 5

My new standard

I bought the Hydromedary 3L soon after my, few month old, Camel bak breached the bottom seam in the reservoir, and filled my pack with water early into a day hike. I've been using it almost daily for the last year and couldn't be more impressed with the construction. I apparently am pretty abusive on my gear, or at least my standards for durability are very high, and this thing is bullet proof. it's a great product, and I would recommend nothing else. MSR, once again, sets the standard for reliability.


Does the MSR water filters screw...


Does the MSR water filters screw on to this hydration system for easier filling ?

Thanks &
Take Care

Best Answer Responded on

Yes, they do. The Droms all use the same standard threads as Nalgene and other water bottles.

Responded on

Roy and Dave- just fyi, those standard threads are 63mm outside diameter.

4 5

Great Durability and Mouthpiece

I love the durability of the fabric and complete lack of aftertaste. I have had zero leakage from the hose or mouthpiece. I also really like the mouthpiece. It does take some time to get use to biting it to open it and the flow is not super high. However, I like to sip water as I go so that's perfect. Plus the mouthpiece seals so well that you don't have to close the valve. My only big complaint is that there is no loop in the center to attach it to a pack that's built for a Camelbak or an Osprey bladder. There is a small opening in the plastic piece you use the lift the bladder. I rigged a piece of heavy gauge wire from Home Depot to make a loop I could attach inside my pack. Finally, a small nitpick, the lid should stay attached when you take it off so you can't drop it or lose it. I like that feature of my old Camelbak. Overall though, they nailed the three most important features in my book - hose, mouthpiece and durability.

Great Durability and Mouthpiece
Responded on

dude, just tie a string between the two black grommets and voila..

5 5

very pleased

just got back from a trip in the Pecos Wilderness, and had bought the 3L to put in my wife's pack. This had no taste and and performed well. Liked it alot better than camelback bladders. Had none of the suction issues or anything like this, but did discover that you have to bite the valve in a slightly different place than a camelback, which might be confusing some people.

5 5

Amazing Product, Better than Dakine Bag

I love this hydration bag. The 3L is perfect for a full day of hard skiing for two people. The material is very very strong and I feel as if it will never wear out.

The tube is high quality, and the no leak bite valve is very nice as well. It has a turn style feature to stop the flow of water even if the bite valve is depressed. Comes in handy for when I lean against it on the lift, water doesn't run everywhere. No plastic taste, and very easy to clean.

I do wish the tube came with a neoprene insulation liner, to help keep it from freezing. Other than that, no complaints. Recommended to anyone over the Dakine Hydration bag.

5 5


A very good way to carry water. Keep relatively chill and accessible.

Dont trust to let the water over there for more than two days... start to have a plastic taste.