Backside Line
Consider any characteristic you need in a hydration bladder, and the Osprey Hydraulics Reservoir doubtless contains it. It’s structurally strengthened with a inflexible again plate, permitting you to effortlessly slide it into any backpack, even when it’s packed to capability. It incorporates a shutoff swap on the chunk valve, a sternum-strap magnet to safe the hose, and a plastic deal with for simpler filling.
All of those luxurious options include a price, each in weight and worth. It’s among the many costliest choices we examined, second solely to the extremely specialised HydraPak HydraSleeve. The Hydraulics Reservoir is a bit cumbersome and heavier than most different bladders. We observed a definite lingering taste of iodine when consuming from it.
In case you’re a hiker who values a seamless person expertise out of your hydration bladder, the Osprey Hydraulics will deliver you pleasure. A few options, such because the inflexible again help and the position of the short disconnect, make the Hydraulics an excellent alternative for multi-day backpacking. In case you’re an ultralight backpacker or path runner, take into account exploring a number of the lighter choices on our listing.
And for more information, take a look at a few of our different well-liked gear guides:
How We Examined
Throughout our testing interval this winter, we scrambled over the granite boulders of Rattlesnake Canyon in Joshua Tree Nationwide Park and hiked the paths in our neighborhood on Mojave Desert Land Belief land. The Osprey Hydraulics saved us hydrated all through, below largely sunny skies within the Southern California desert.
Fast Specs

Osprey Hydraulics Reservoir
Greatest bladder for in a single day backpacking
CleverHiker Score:
4.4
Value:
$48
Weight:
6.4 oz.
Dimensions:
15.4″ x 6.9″
Capacities Out there:
2L, 3L
Execs
- Tons of good options
- Inflexible again plate helps whereas loading it into full backpacks
- Giant slider opening makes it simple to scrub
- Inexpensive worth for the options it contains
Cons
- Costlier than others
- Cumbersome and heavier than others
- Retains distinct iodine taste within the water
Weight & Packability
If different bladders sacrifice options to attain lighter weights, the Osprey Hydraulics provides additional ounces to supply a feature-rich design and a premium person expertise. The Hydraulics weighs 7.6 ounces, making it our second heaviest bladder after the specialised HydraSleeve.
As a result of its inflexible backer and ergonomic plastic deal with, the Hydraulics doesn’t roll up or pack down simply. We measured its minimal measurement at 15” by 6” by 1.5,” making it one of many bulkier bladders we examined. In case you admire the design options however wish to scale back weight, Osprey produces a lighter model of this bladder known as the Hydraulics LT, which lacks a inflexible backer.
Ease of Use
The person expertise is the place the Osprey Hydraulics actually shines; it seems like Osprey has considered all the pieces. Filling it within the sink is a breeze due to the ergonomic plastic deal with. The plastic again plate helps the bladder keep its form as you slide it again into the hydration pouch, even when your backpack is stuffed with gear. Its fast disconnect additionally releases the hose close to the highest of the bladder, reasonably than the underside. This implies you received’t need to sift by way of all your gear to reattach the hydration hose after filling.
The sliding closure additionally has built-in loops in case your backpack incorporates a suspension strap that closes with Velcro or a buckle. The chunk valve contains an on-off swap that’s simple to function with one hand, which we imagine is likely one of the most necessary options.
The sternum strap attachment incorporates a robust magnet that feels fairly safe and prevents the hose from flopping round whilst you run or hike. Nonetheless, the plastic attachment itself appears barely extra vulnerable to slipping off than the one on the Contour. Throughout our testing within the desert, we observed fairly a little bit of sand getting caught to the magnet, however this didn’t seem to have an effect on its power an excessive amount of.
Ease of Cleansing
The large opening of the hydraulics measures about 3.5 inches in diameter, which is giant sufficient to accommodate our tester’s hand. This made cleansing it moderately simple, though she nonetheless wanted a protracted brush, because the opening is just too small for her forearm to achieve deep sufficient to scrub all the inside. Moreover, the middle baffle impeded the method and made scrubbing a bit trickier.
This was additionally one of many slowest bladders to dry. As a result of it’s a reasonably slender bladder, the internal partitions have a tendency to stay collectively when moist, and the sliding closure finish rests in a sealed place, limiting airflow. Even whereas hanging within the desert sunshine, the Hydraulics bladder took over 4 hours to totally dry.
Style
As soon as cleaned and dried, we have been disillusioned to search out that the Hydraulics nonetheless retains an iodine style. It’s not as dangerous because the style of the Gregory 3D Hydro or the Cherainti Bladder, however it’s additionally not as recent because the hydration methods from Platypus or Camelbak.
Sturdiness
We didn’t discover any sturdiness points with the Hydraulics Reservoir throughout our testing interval. We’re curious to see how the inflexible plastic items maintain up over time, as they appear susceptible to cracking or breaking upon impression.
Ought to You Purchase the Osprey Hydraulics Reservoir?
Multi-day backpackers who anticipate loads from their gear will admire the considerate design of the Osprey Hydraulics. In case you’ve struggled to stuff your full water bladder again into your in a single day pack, you may perceive the inflexible backer that helps the bladder preserve its form as you slide it into the hydration sleeve. You additionally received’t need to fish by way of your gear to reconnect the hose, because the quick-release is positioned close to the highest of the bladder.
These premium options include a better price ticket and heavier weight. For these simply beginning out backpacking or thru-hikers seeking to shed ounces, chances are you’ll discover one thing else that higher matches your wants.
What Different Hydration Bladders Ought to You Contemplate?
With so many different nice bladders, you’re certain to search out one that matches your wants on our listing of this season’s favorites.
Hydrapak Contour Overview: The Contour manages to retain our favourite options whereas shedding a couple of ounces from the Osprey Hydraulics bladder. The Contour additionally has a sliding closure, however it’s simpler to scrub and dry as a result of it may be turned inside out. The chunk valve incorporates a shutoff swap, and the hose has a sternum strap magnet, each of which we admire for his or her ease of use. We additionally suppose the Contour tastes barely higher than the Hydraulics bladder, a serious win in our e-book.
Osprey Hydraulics LT 2.5 L Reservoir: Although we didn’t check it ourselves, we’d suggest testing the Hydraulics LT in order for you one thing lighter however like the general design of the Hydraulics. It has the identical ergonomic deal with, on-off lever on the chunk valve, and sternum strap magnet, however the LT 2.5 liter shaves off about 1.5 ounces from the common 2 liter model. It seems to attain this primarily by ditching the inflexible backer, so if that’s your favourite characteristic, it might be finest to stay with the common Osprey Hydraulics Reservoir.