The Osprey Hydraulics bladder is unique for its integrated backplate that helps the bladder retain its shape when empty. Offered in 2L or 3L options, it features a slim profile and an elongated spout, perfect for collecting water from shallow trickles in the backcountry. It slides easily into backpacks making it easy to remove, fill, and replace without frustration. The hose comes in two parts (see photos). The idea is to create easy access to unclip so you don't have to take it off your pack or dig through your backpack contents. That said, this feature makes it a little harder to clean and pack away.
While good for hiking and backpacking, it's a little too heavy for running vests. A lighter version is the Osprey Hydraulics LT that has the same features, minus the rigid backplate, making the fit more versatile with backpacks and running packs. While we didn't experience any durability issues or note any problems during our testing period, some online reviews express issues with the durability of the outer fabric. Also, the taste of the bladder was bad during the first few uses, but it went away after several uses. If you seek a better option, the Source Tactical WXP offers a more durable outer fabric and no weird taste. However, it doesn't have an integrated rigid backplate, nor does it have the same hose system. Overall, this is a great hydration bladder for those seeking a rigid and easy-to-use hydration bladder.