OspreyHydraulics LT 2.5L Water Reservoir with Bite Valve, Red

Awesome bladder. I already have one of these so i know what i can say about it. Stays relatively flat even when full, awesome all the way around. OSPREY doesnt fool around!!!Great quality on the slide top and all components. Nothing feels chinsey, even though the bag itself is kinda thin, the material is strong.Recommend freezing with lemon juice and lemons in water 2/3 full before use though. Lots of plastic/rubber taste when you first get it. To be expected from all new water bladders.Bite valve is excellent and the magnetic clip is my favorite feature.Excellent option if you wanna scoop your water straight from a stream, with the slide top mouth and hard lips it is easy peasy. The fact that the tube splits with a quick connect, filtering is a breeze if you have a clip in filter. Filling this thing with a gravity system would be just as hassle free.If you dont need the rigid back panel the LT model is the way to go, it is the lightest of the hydraulics line and will last you a very long time. All around the best choice when it comes to water bladders, i think. Be sure to get a cleaning kit though. Cleaning the drink tube could keep you from getting unnecessarily sick.

Beautifully made. Very functional.1) opens not with a screw-on cap but with a slide off plastic crimping thing. Then the entire top opens like a ziplock bag for easy filling and cleaning.2) the tube detaches close to the reservoir so once you install the tube in the shoulder strap, you can leave it in place and remove only the reservoir for filling and cleaning. This is super convenient and a smart idea.3) the bite valve easily pulls off so you can clean the other part of the tube and let it dry out for storage.4) no chemical taste or smell5) compared to that other leading brand of reservoir packs, this is in another class entirely6) the magnet by the bite valve is a great feature. Installs on the sternum strap to hold the tube steady during activity.Downside: it's expensive!!

The 2.5 liter bags were perfect for a weekend backpacking trek in Joshua Tree. We still had to carry more water, but the 2.5 liter bags were a perfect fit in or Osprey Exos packs. The durability, seems good, decent thickness. We didn't experience any leaking from any part of the bags, or hoses. Easy to drop into our packs. We would definitely buy again, it's a good value for the money.

REALLY! About 4 days ago I woke up thinking there has to be a better water bladder design. Every time I fill up my Humpback (you know the one) bladder it swells up as big as my leg and takes up half the pack. I thought to myself, what we need is a bladder with an internal panel that makes it keep it's shape. I thought to myself of the $$$millions that I would make and how adoring fans would stand in line just to thank me. Then I looked on Amazon.RATS! Right there before me was this Osprey 2.5L bladder designed just for me. It does not hurt that I also have an Osprey pack. Seriously, this may be the absolute best design that I have seen. The V that you see is two "welded" in panels that keep the bladder from ballooning into a sausage. When fully filled it is about 2" thick and should easily fit any pack designed to carry a bladder. The hose can be easily routed left or right as required by your pack. It also has a quick disconnect inside the bag that allows the bag to be removed with out having to reroute the exterior part of the hose. The magnetic clip to keep the mouth piece in place for easy access is simple genius.I could go on about how easy it is to fill etc etc etc but instead I will say that if I had build my own bladder it is pretty certain that it would look and work a whole lot like this one does. Of course, I will miss my adoring fans but at least I did get a great bladder and did not have to make it myself. Absolutely recommend this.

I picked up this water bag to use in a 22L Ortovox backpack. It is high quality and has a nice tube which splits in two about half way through. This is a great feature because you can leave half of the tube in you pack strung through the shoulder outlet and still remove the bag for filling or cleaning. There is a bit of a taste (perhaps plastic/factory), but it's not too bad. Should go away with time.One item to note is that the bag is quite tall. In my backpack it has to fold over a bit when hanging from the strap in the backpack. This hasn't caused any issues, but it's good to know about.Pros-Holds a lot of water-Materials are quality-Hose breaks apart into two pieces-Seems durableCons-Taste (not too bad)I'd buy it again. If you have a small pack, you may want to size down.

Great product to replace your old nasty Osprey bladder. Easy to change and it came with a new magnetic attachment point for your pack. I used this with my Osprey pack but it would likely work with other packs.

Exactly what i needed, it's perfect for my 38l.

Looks like I got a leaker, near the top, which seams to be one of the few common complaints. First use, too. Otherwise everything about the bladder, is perfect, and I really like how much easier it was to fill, versus other bladders. Bite valve worked fine, and I loved the included magnet. Went with the Osprey, as I've had luck with their products in the past, but will have to look at another option. 30 day return window, so ordered a few weeks before my travel plans, got wet gear, and couldn't return it. It was fine on this trip, as I had many opportunities to refill it, but for my next trip which has non reliable water along the route, it would have been bad.