Keep the fluids flowin' with the re-designed MSR Dromlite Bags.

The MSR Dromlite Bags are a lighter, but equally tough, version of MSR's Dromedary Bags for the weight-conscious backpacker or camper. MSR Dromlite Bags take the hassle out of filling, carrying, and pouring water in the field. MSR designed their Dromlite Bags to withstand the most trying conditions. With a temperature threshold from freezing to boiling, and abrasion-resistant cordura construction, these sturdy Bags hold up to the most rigorous adventures. MSR added a low-profile handle making it easy to fill. MSR Dromlite Bags have added perimeter webbing allowing you to attach it to your pack or hang it up at the base camp. The bonus 3-in-1 cap ensures effortless filling, drinking, and pouring from the Dromlite Bags.

Share your thoughts

What do you think of the

MSR Dromlite Bags

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

does the 4L fit in the hydration sleeve/back...

does the 4L fit in the hydration sleeve/back panel of osprey packs?

Responded on

I think the biggest issue you are going to have is with the cap. If you don't fill it up all the way you might be able to get it in there. You might encounter some problems with the back panel with the 4L in there (it bulging out into your back)

Responded on

do you put it in the main compartment? If so how does it carry/pack? i only have a 45L pack so not much space for it.

5 5


Holds a generous amount of water, but packs down to and weighs almost nothing. The interface with MSR water filters makes refilling in the field simple. The 3-in-1 cap has a variety of uses, and is well thought out.

5 5

The best bladder!

  • Familiarity: I've put it through the wringer

I've had a 4L Dromlite for about 8 years and it's still going strong with nary a leak. I used to use Platypus bags but got tired of them eventually getting brittle and leaking at the corners. Not a problem with the Dromlite! For easier pouring, I highly recommend the Spigot Cap (CAS0051). I've attached some cordage to the grommet on my bag so I can just clove hitch it to a branch once I get to camp.

5 5

Hydration sack!

  • Familiarity: I've put it through the wringer

I used the 6 liter Dromalite all summer last year as a wildland firefighter, and it stood up to the abuse! I was a bit concerned at first and thought I should get a dromedary but this thing killed it. with the hydration kit this thing was great. I still use it when I want to take extra water or I'll only put 2 or 3 liters in it at first and when I get to camp pump some water and fill it all the way up. I have loved having this. and it stood up to some real abuse

5 5

Great water bag

  • Familiarity: I've put it through the wringer

I have the 6L bag and it is really big! I don't even use the whole thing. I just fill it up for a days worth and get all the air out of it. During the summer months it keeps water around or below room temperature without Ice and when its 90 degrees outside. I would personally suggest getting the 4L because it will fit in you pack better but it is all depends on what you are doing. If your going on long backpacking trips in the summer then go for the 6L or bigger, but if your only doing day trips and have no intention of long backpacking trips then I would suggest the 4L.
Everything on the water bag works outstandingly. I haven't had a problem with the cap it is actually very helpful. The little part on the cap posses no problem to leaking. The thin fabric is really lightweight and tough! I have put it down on sharp rocks and it shows no sign of ripping or weakness in the fabric. MSR really hit the nail on the head with this product, it is a must have! This is much more efficient than 6 water bottles. Now you bring this in the sleeve in you pack and a water bottle or two and your set for water!

Here's your MSR hydration adapter kit

Here's your MSR hydration adapter kit

item# CAS 0329...screws on to the smaller of the 3-in-1 threaded caps

5 5

Everyone should have one

Can't imagine what it used to be like before I started packing in one of these in addition to my hydration reservoir. I usually fill the hydration reservoir in my pack, pack in the Dromlite bag empty with a couple empty Nalgenes. Once I set up camp, I can walk down to the river and fill everything up with my filter. Easy to hang, and use as a dispenser at camp.

4 5

Backcountry Skiing Hydration

This is a killer tool to have in your pack to stay hydrated. I've dealt with my hose from my hydration reservoir freezing up one too many times and have since been turned onto the Drom set up by a few wise men out there. Doesn't freeze, packs wherever there is room(form fits to pack space available). Easy to fill and drink out of.

5 5

Dromlite Bag

  • Gender: Male

Best option there is for scrambling, climbing, and skiing. For years I struggled with camelback type bladders, waterbottles and nalgenes until I saw a partner using the Dromlite. It is lightweight, easy to fill from a stream, packs in a backpack easily, and when it is empty, it takes up almost no space! I have had other bladders leak but this one is rock solid. I don't worry about having it in a pack with climbing gear. As long as it is not packed between crampons it is fine!

5 5

Light, Right, and Bright

  • Gender: Male
  • Familiarity: I've used it several times

After futzing with frozen hoses every winter I took a page from a touring buddy and went with a drom. I've use the regular Drom bags in the summer for camping so I decided to lighten the load and use this for my water needs while backcountry skiing. Turns out its faster to pop off my pack and take a swig than it is to unzip my bladder sleeve, unlock the valve, drink, blow back the air, lock it, and put it away.

Hydration needs are HANDLED.

3 5

Not as good as platypus

I have a platy 6L and a dromlite 4L and the platy is just superior in so many ways. This is light, has several pouring capabilities (little squirter, small pourer, wide filler), but otherwise is just an awkward bladder. It doesn't have a very good handle, though you can clip a 'biner to the eyelet on the end. And it won't stand or sit while the larger cap openings are utlized else the water will gush out.

I can probably be happy with one of each, since I've already got the Dromlite, but if I had to get another, I'd get a second platy.

4 5

Fill it up

I went with the 6L bag and so far i love being able to have plenty of water to drink on my hikes without having to filter any when moving fast. The 3-in-1 cap is nice for filling up water bottles for short hikes around camp or filling up pots for cooking.

5 5


Tough water bladder and a choice piece of gear on all my expeditions

5 5

Milton Waddams on steroids

I’ll preface this review with my cut and paste statement that I work as a backcountry backpacking guide in Yosemite National Park. Nearly all of the products I take the time to review have seen at least a half a season, if not more, of use... and I’m committed to not bothering to write a review until I feel like I’ve really gotten to know a product. I never thought I’d bother to write reviews, but I’ve recently decided that since I’ve spent so much time over these last many years reading reviews, and finding a tremendous amount of value in articulate and well-informed opinions, that I wanted to give back to the community. So, with that being said, here we go...

These are another of those pieces of gear that wind up being the unsung, unthanked whipping boys of our trips. Water and water containers are not sexy like hard shells and backpacks. People sit around and croon about their new Arcteryx Alpha SVs... or their trusty old Western Mountaineering bags. Who gets hot and bothered talking about their water containers? If these could talk they would sound like Milton Waddams from Office Space. Don't let their timid, unsexy demeanor fool you... these are the grunts of backpacking. Give them a few strokes of appreciation, invite them to be a part of your quiet time around the campfire, clean them once in a while, and for God's sake don't put them up wet.

Care for these, show them a little appreciation, and they'll faithfully serve you for decades.

Disclaimer - I left this same review for the normal Dromedaries, because we use both, and I feel the same about them. They are steadfast and trusty, and unsexy enough that they don't get the love they deserve.

5 5


Water bottles are for suckers. Get the adapters to turn these into a camelbak-like bladder you can suck on while you hike, or just rolling them up for weightless travel, these things kill it. As durable as the un-lightweight version, they'll keep you hydrated for a while. Show me a better way to carry 6L of water for 4 oz. Water is life.

2 5


I recently purchased the 6 liter bag and it leaks. This is the second one I have purchased that has done this. If you buy one, fill it full of water, put the lid on, hang it upside down over night. If you get no puddle, go ahead and use it. The problem seems to be around the lid, I was dissappointed, MSR stuff is usually great. The other thing that surprises me is most people have nothing but good to say about it, maybe I am just unlucky?

Responded on

I had the same problem with a 4L. It leaks around the lid.

Responded on

same problem here, but it didn't always leak. I've got 2 friends that this is happening to as well now. We use them for ski touring and the problem seems to be that with repeated freezing, the water in the small part of the cap expands and cracks the inside of the small cap causing it to leak. I'm going to get a replacement cap, but wouldn't use this in the winter anymore!

Responded on

I've had the same experience, and have heard from friends that theirs leaked as well.

4 5

Good Investment

I own a three liter hydromedary and a four liter dromlite. They are both very durable and much better than the other bags out there. The four liter dromlite is too small to use as a base camp water source, as it has to be refilled multiple times when used in a group setting.(Almost always). Definitely looking to get another in a larger size.

Responded on

I have an old 3L hydromedary as well. Been in use for 16 years now I believe. Bought it for a trip to New Zealand in 1998. Mine has never leaked and keeps taking abuse. I don't know if the inside seal has changed since then, but the water definitely does develop a plastic taste after a few hours. Mostly use it to transport my Lab's water for the day and he doesn't seem to mind. It goes climbing every weekend so obviously is durable. Wish they still made the 3 L size though, its perfect.