Mountain Equipment Company

Osprey Hydraulics Reservoir


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Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


The most tricked-out hydration reservoir you're likely to see for a long time. It has a rigid backer plate that slides easily into a full pack and won't slump when it's half full. The quick disconnect system is part way along the hose, not at the bottom, so it's easy to remove the reservoir for re-filling. It's designed for easy filling (even from a shallow pool or creak) and you can pour water with control rather than dumping it on your shoes.

  • Made of taste-free TPU film that contains no BPA, can be frozen and is safe to use with hot water (up to 140F/60C)
  • Radio frequency welded seams offer a consistent air-tight seal that won't leak
  • Hydrostatic plate provides structure and maintains a flat profile that shoves neatly into a fully loaded pack
  • Slide Seal wide opening is easy to clean and dry. Dishwasher safe, on the top rack only
  • Pour shield extends the collar for filling in shallow sinks and streams and add control when pouring into pots or bottles.
  • Integrated handle to pull it out of your pack
  • Flexible TPU hose resists kinks and can be routed to either side of the reservoir
  • QuickConnect tube system lets you remove the reservoir and leave the hose in place
  • HydraPak Blaster bite valve has an on/off switch to prevent dribbles. Magnetic clip attaches to the hose and pairs with the included sternum strap magnet

Tech specs

Weight210g (2L)
220g (3L)
Ideal for
  • Backpacking
  • Day hiking
  • Mountain biking
  • Running
  • Polyurethane
Wide-mouth openingYes
Quick-disconnect tubeYes
Bite valve shut-off switchYes
Made inChina

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3 out of 5 stars with 12 reviews for Osprey Hydraulics Reservoir

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