Custom-fit suspension systems are Osprey's bread and butter, so it makes sense that the Hydraulics Hydration Reservoir is shaped with a rigid backer plate to prevent any interference with how your pack fits and carries. The durable MPE reservoir material keeps water tasting exactly the way it should, and the magnetic bite valve keeps the hose secure when you're cruising up the trail.

  • Metallocene PE reservoir material is exceptionally strong, taste-free, and BPA- and PVC-free
  • Antimicrobial formula keeps mold and bacteria away
  • Wide-mouth cap is easy to fill and has a 3/4 turn for quick and secure closure
  • Front handle makes the reservoir easy to fill and insert into the pack
  • HydroStatic backer plate allows the reservoir to maintain a low-and-wide profile, preventing interference with your pack's suspension
  • Magnetic bite valve with included sternum strap magnet keeps the hose secure when hiking
  • Bite valve can be quickly closed with a 180-degree shut-off valve
  • Flexible 1/4 inch water hose increases flow for satisfying thirst quenching

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Here's what others have to say...

5 5

Osprey > Camelback Reservoir

  • Familiarity: I've used it several times

Bill Porreca recommended this reservoir for my replacement of my camel back. I'd have to say, this bladder is amazing. The feature of the handle really makes it easy to get as much water into the reservoir at the level you desire. The larger openings helps as well. Although, I'm not sure if this is available or not, but would like a sleeve for it in case my Osprey pack doesn't have one built in that I can attach to it.

5 5

Great little feature

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

This bladder was recommended by my gear head for an upcoming week in Glacier National. I picked up two new packs and a bladder for each. There a couple of nice features. 1st the handle supports the bladder nicely in a horizontal position for easy refills. You can actually do it one handed. The other feature I really enjoyed was the magnet clip on the mouthpiece. You can attach the corresponding clip on your pack and the mouthpiece will stay locked in. No reaching around to find the tube. It was right there in front of me all day. It was the envy of everyone on the hike.

Responded on

I'm stoked this bladder worked out for you! For anyone interested in setting up an order and wanting to find out the perks of ordering through me, shoot me an email at skdavis@backcountry.com

3 5

One Flaw

  • Familiarity: I've used it several times

The one major design flaw in this system is the connection point between the hose and the bladder. Halfway through my second time having this out, the hose unattached and I lost most of my water and soaked my pack. I do however love the handle and ease of filling. The screw cap doesn't work as easily as camelbak's antidote reservoirs, but I do appreciate the way this bladder integrates with my Osprey pack.

5 5

Works like it should

  • Familiarity: I've put it through the wringer

This is solid bladder. I have been using this for years, not too much to say. It provides a good flow of water, the design is well thought out, I like the magnetic clip, it is easy to clean and dry, and the water never tastes funny. There you have it, this is a good bladder, I honestly dont know how they could have made it better, except for maybe maybe making it lighter, but that would sacrifice its durability, and maybe make the hose detachable.

4 5

Simple, reliable

  • Familiarity: I've put it through the wringer

I prefer this to the traditional CamelBak reservoir because it has a plastic frame that keeps its shape regardless of how full it is. The hose is nice (although not detachable, which is a little annoying). I'm on my 2nd one of these, it comes on every hiking/biking/camping/etc trip I do.

5 5

A Very Nice Rezy

  • Familiarity: I've put it through the wringer

Love the bite valve, easy to clean, no-nonsense, and doesn't leak. I've had many forms of hydration systems from several companies, this is the best. 2L is my volume of choice for day hikes and mountain biking.

5 5

Osprey Packs Hydraulics Hydration

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

I have been using Camelbak stuff which I like, but some of the features of the Osprey Packs Hydraulics Hydration Reservoir
take it to the top of its class: the reinforced plastic backing makes it less likely to get punctured when you are filling it from a stream; the handle and the magnet on the sternum strap. Good stuff.

3 5

It works...

  • Gender: Female
  • Familiarity: I've put it through the wringer

I found this reservoir to be a bit bulky for my Osprey day pack - it works well enough for bigger packs though. I haven't had any of the cap issues that others seem to be experiencing - I've used it several times now and it has worked perfectly for me each time. I really like how big the opening is, this is something I've had issues with in the past with other reservoirs. Overall, I'd say this a good product but maybe just a bit overpriced.

3 5

Watch out!

  • Familiarity: I've put it through the wringer

I really like this pack... when it works right. I've taken it on hikes and bike rides, and have been really happy to have it. But I've also had problems closing it on other trips. I find it really hard to tell whether the cap is actually on tight enough... There have been a few times where I THOUGH it was closed, put my pack on and then realized it was still slightly open, often resulting in all of my gear getting soaked... My laptop has actually been soaked a few times.... Its like the "Russian roulette" of hydration packs..

Responded on

I have also had this problem. I thought there was a leak for a while but I guess it was actually just not closed tight enough.

4 5

Perfect fit for Osprey packs

  • Familiarity: I've used it several times

I've a few Osprey packs and this fits great. I love the hard back and the way they set the water hose so it is fixed going up on either side. The opening is nice and big, and I like the strong magnetic bag clip. Only downside is that it might be too bulky for lightweight consciences folks.

3 5

It gets the job done.

  • Familiarity: I've used it several times

I use an Osprey Stratos 24 for my day pack. Due to the Stratos design the 2L fits but the plastic handle takes up some additional room inside the pack. It is a little awkward to get in and out to refill without removing everything from my pack . It fits in my big pack with no issues. For the Stratos I ended up purchasing the 1.5L LT with the detachable hose.

1 5

Leaked almost right away

I rode with this maybe 2 or 3 times before it started leaking and it's unuseable. Very unhappy with this product.

4 5

Great Hydration System!

  • Familiarity: I've used it several times

Pros: Integrates nicely into my Osprey Aether 70! Love the magnetic clip that connects to my pack and the handle that is built into the bladder.

Cons: A little pricey

3 5

It has its ups and downs

Up until last week, I loved this reservoir. I have the 3L one and I am in love with the magnet feature. It makes it really easy to drink while riding my bike, and it keeps the nozzle from flapping around.

Unfortunately, last week the cap stopped functioning. It has this blue ring that keeps the cap attached to the reservoir so you won't lose it, but for some reason that ring stopped being able to spin separately from the cap itself, leaving me unable to close the pack. I took that ring off and it functions, though it won't be long before my cap is lost.

Aside from that, I love this. The back of it is nice and rigid, so it feels okay to wear. It still gets rounded, naturally, but the rigidity helps.

Responded on

I found the same issue with my lid. It is not able to spin separately from the tab that keeps the lid attached. Otherwise I am very happy with it.

Responded on

I solved this issue by applying a dab of olive oil, spins good now.

Responded on

zankyu both!!! :) The olive oil was much better than my rosemary oil. And taking the ring off was the best. The hubby could do spinsies with the cap all day.

Responded on

I complained to the Osprey people and they actually sent me a new cap. So thats an option.

5 5

Stood up to Fitz Roy

  • Familiarity: I've put it through the wringer

I hiked all throughout Patagonia for 8-9 hours per day for 5 days and this bag got me through it. Terrific system.

4 5

Good bladder

I don't own an Osprey backpack for which this reservoir was made, but this fits nicely in my NorthFace bookbag and serves its purpose. The only downside is that it has plastic and magnetic attachments on the end that are bulky and incompatible with the NorthFace.

4 5

Great Bladder!

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

Pros: Bladder is rigid and durable. The backer plate is perfect. The magnetic bite valve is a heaven-send.

Cons: If you're not careful pushing the bladder into your bag you might disconnect the hose from the bladder. Also, the lid is a little tricky