








💧 Stay hydrated, stay unstoppable — the ultimate hydration upgrade.
The Osprey Hydraulics LT Backpack Water Reservoir is a 2.5-liter hydration system designed for seamless one-handed use with a thumb-operated on/off bite valve. Its compact Slide-Seal opening and secure hose magnet system prevent leaks and bulk, while dual internal baffles maintain a slim profile for easy packing. Engineered for durability and convenience, it integrates perfectly with Osprey packs and is backed by a trusted warranty.
















| ASIN | B0BLZMSJMX |
| Best Sellers Rank | #14,374 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Outdoor Backpack Reservoirs |
| Brand Name | Osprey |
| Capacity | 2.5 Liters |
| Customer Reviews | 4.5 4.5 out of 5 stars (544) |
| Date First Available | January 12, 2023 |
| Global Trade Identification Number | 00843820160918 |
| Included Components | 1 Water Reservoir |
| Item Dimensions LxWxH | 0.39 x 7.68 x 16.34 inches |
| Item Package Dimensions L x W x H | 20.8 x 9.2 x 1.6 inches |
| Manufacturer | Osprey |
| Model Name | 2.5L Water Reservoir |
| Number Of Pockets | 1 |
| Package Weight | 0.27 Kilograms |
| Part Number | 10005151 |
| Pocket Description | Utility-Tasche |
| Product Dimensions | 8"W x 15"H |
| Size | 2.5L |
| Strap Type | Shoulder Strap |
| Style | Hydraulics |
| Suggested Users | unisex-adult |
| Tank Volume | 2.5 Liters |
| UPC | 843820160918 |
| Warranty Description | All Mighty Guarantee |
B**N
Leak free hydration
LOVE this product. Easy to use, clean and store, this running reservoir fits my Osprey running vest perfectly and gets me through every long run. Clearly high quality materials and easy to put together.
G**R
Spectacular water bladder
Easy to fill, and the best bite valve I've yet encountered. There is an on/off for it, but not needed so far. Bite and water flows, don't bite and it stops. No leaks, no drips.
T**R
Great Product!
This worked great for a day hike. Probably about 4.5 hours of hiking, and it emptied about 1/5 of the way back down the mountain.
A**R
Perfect size
It took me some time to realize that I need to shut off the valve to stop the leakage on the car ride home, but once I did, this bladder has been flawless. Operator error has been my only troubles so far. It holds plenty of water for a 5-6 mile hike. My only complaint is that it was a big pricey. Fits absolutely perfectly in my Osprey hiking pack. No weird taste that I’ve noticed. Seems to be rigid enough to last for years to come.
M**N
Osprey just nails hydration
This is the best reservoir I have ever used. Osprey does it best. Easy to fill, the mouth opens wide with one hand. Durable, I trail run and have never had a problem, I use they Osprey Dyna (yes, the men's) hydration pack.
S**N
Best Hydration Pack
Terrific product. Easy to use, easy to clean. Fits perfectly in the Cotopaxi bag I got my wife recently. I love the magnetic clip that hold the straw out of the way.
J**D
Unhappy Osprey Backpack Camper
I was able to use this twice. It was babied and well-protected at all times. It sprang a leak regardless. This was my first and last Osprey reservoir; I'm going back to the famous blue brand which has always served me well and always lasted for at least two years. It's a shame because I have an Osprey backpack and this reservoir is made to fit. But it can't hold water.
O**T
Worked like it should! Held water and didn't leak
Bought to replace a smaller water bladder in my Osprey pack. Worked great, easy to fill, has quick release on hose and never leaked on a multi-day backpack trip.
A**O
Ottima veramente. E soprattutto, l'acqua non ha quel sapore fastidioso di plastica. Consigliata 👍🏻
S**T
This bladder has been upgraded a bit from the original 2.5L bladder that came with my 2022 Osprey Raptor 10L. It has a red handle which makes it easier to fill and a quick connect main hose. The bite valve feels a bit softer & easier to get water to flow through it. The small lever to turn the flow on/off is easier to use if you forget to turn it on while riding. The lever has a light-ish ratchet feel to set it at different flow rates but I only set it fully On or Off. I find It a lot better than the original bite valve (which I'd replaced early on with an old but larger camelbak on/off tap & mouth piece which was infinitely easier to use at the time). The price for this was good as the older style bladder was also available new but quite a bit more expensive than this model.
D**S
Ich kann die negativen Rezensionen überhaupt nicht bestätigen: weder ist er undicht noch richt er nach Plastik. 3x ausgespült und das Wasser schmeckt frisch und neutral. Die 1,5 l Version ist perfekt, nicht weil sie leichter als die 2,5 l Variante ist, sondern weil sie gefüllt weniger Platz im Rucksack (Osprey Hikelite 18l) wegnimmt. Und wenn man nicht gerade durch die Wüste läuft gibt an jeder Ecke Wasser: ergo 1,5l reichen völlig. Der Beutel ist durch die Innenstege sehr Formstabil er bleibt flach. Kupplung, Absperrhahn und Beißventil funktionieren einwandfrei bei umsichtiger Behandlung steht m. E. einer langen Lebensdauer nichts im Wege. Denke nach 5 Jahren ist der Produktlebenszyklus eh abgelaufen da sich dann die Weichmacher verflüchtigt haben, ab das weiß man ja sonst hätte man zur Aluflasche gegriffen und auf den enormen Komfort und die erhöhten Ausgaben verzichtet. Fazit: teuer, gut und ein absoluter Luxus der, wenn man bereit ist ihn sich zu gönnen, den Spaßfaktor am Wandern noch mal deutlich erhöht. Das Gewicht ist da wo es sein soll tief und nahe am Rücken und der nächste Schluck kein 10cm entfernt. Selbst zum Trocknen nach dem Reinigen gibt es einen Aufhänger. was will man mehr? Klare Kaufempfehlung, wenn Rucksack dafür ausgelegt und das nötige Kleingeld dafür übrig ist.
P**O
I really like this design, its easy to fill/clean and offers a good volume of water for hydrating while active. Its real selling point for me is the magnetic strap attachment that keeps the outlet for the water firmly attached to your chest strap, no flapping about, just a great design that is executed very well indeed. You may find cheaper hydration packs but the quality of materials and the design really make this a great investment.
J**K
Perfect combination for the Talon 25L pack. Fits perfectly in the slot and the holder keeps the bag upright.
Trustpilot
2 months ago
1 month ago