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The Osprey Hydraulics Soft Flask is a packable water container for trail running. Fill up, move fast, drink when you need it. Once you’ve sucked down the thirst-quenching water, crush the flask and tuck it away into pocket or pack. Fits easily into the harness pockets on run vests, mesh side pockets, and more. This little guy is always ready to deliver a quick shot of water with a simple squeeze.
FEATURES of the Osprey Hydraulics Soft Flask
- Add-on or aid replacement for our vestpack harness pockets or our handhelds
- Vest-pack fit provides bounce-free stability and purpose-built for incredible comfort so you can focus on FKT’s and PR’s
- Pockets up front for quick access to fuel and soft-flasks, trekking pole storage when you need to use your hands as much as your feet to move forward, and room for rain gear and extra layers
- Bottles, reservoirs and add-on flexibility for short runs, long runs and everything in between. You decide what you need. Duro/Dyna makes it possible
- Mesh covered, die-cut slotted foam harness
- Slotted adjustable sternum strap with safety whistle
- Stretch woven harness pocket
- Adjustable and removable dual chest straps for additional stability
- Front harness gear-and food-organization pockets
- Die-cut eva foam for larger loads
- Breathable mesh wrap with soft, irritation-free contact surface
Fabric Details
- Main: TPU film
- Accent: TPU film
- Bottom: TPU film
Osprey Men’s Backpacks
| PACK SIZE | One Size | Small | Small / Medium | Medium | Medium / Large | Large | Large / X-Large |
| Aether, Aether Plus | – | – | 17 – 21″ | – | – | – | 19 – 23″ |
| Aether Pro | – | 16 – 19″ | – | 18 – 21″ | – | 20 – 23″ | – |
| Archeon 30 | 17 – 22″ | – | – | – | – | – | – |
| Archeon 45 | – | – | 17 – 21″ | – | – | – | 19 – 23″ |
| Atmos AG | – | 16 – 19″ | – | 18 – 21″ | – | 20 – 23″ | – |
| Atmos 65 | – | – | 17 – 21″ | – | – | – | 19 – 23″ |
| Exos | – | 16 – 19″ | – | 18 – 21″ | – | 20 – 23″ | – |
| Kamber 16 | 18 – 22″ | – | – | – | – | – | – |
| Kamber 22, 32, and 42 | – | – | 16 – 20″ | – | 19 – 23″ | – | – |
| Kestrel | – | – | 16 – 20″ | – | 19 – 23″ | – | – |
| Levity | – | 16 – 19″ | – | 18 – 21″ | – | 20 – 23″ | – |
| Rook | 17 – 22″ | – | – | – | – | – | – |
| Soelden, Soelden Pro | 17 – 22″ | – | – | – | – | – | – |
| Stratos | – | – | 16 – 20″ | – | 19 – 23″ | – | – |
| Talon, Talon Pro | – | – | 17 – 20″ | – | – | – | 19 – 22″ |
Osprey Men’s Hydration Packs
| PACK SIZE | One Size | Small / Medium | Medium / Large |
| Duro | – | 33 – 39″ Chest Measurement | 37 – 44″ Chest Measurement |
| Katari | 17 – 21″ | – | – |
| Manta | 17 – 22″ | – | – |
| Raptor | 17 – 21″ | – | – |
| Skarab | 17 – 22″ | – | – |
| Siskin | 17 – 21″ | – | – |
| Syncro | 17 – 21″ | – | – |
Osprey Men’s Travel Packs
| PACK SIZE | One Size | Small / Medium | Medium / Large |
| Farpoint Travel Pack | – | 15 – 19″ | 18 – 22″ |
| Farpoint Trek | 17 – 22″ | – | – |
| Ozone Duplex | 17 – 22″ | – | – |
Please note that the info provided above refers to the Torso Size / Length the pack will fit, and NOT any dimensions of the pack. Below are steps for how to measure your torso length. You should have someone help take this measurement for you so it is accurate.
HOW to MEASURE TORSO LENGTH:
1. Start at the iliac crest, which is the top of the hipbones on the side of your body. These act like a shelf for supporting a pack hipbelt.
2. Touch your chin to your chest to find the C7 vertebrae, the knobby bone at the base of your neck.
3. Make sure you keep your back as straight as possible while measuring.
4. Measure the full length from the C7 vertebrae to the iliac crest. This torso measurement determines what size Osprey pack you should carry. Refer to the size chart above to find your ideal size.
5. If you are in between sizes, it is ideal to try them both on before ordering.
HOW to MEASURE CHEST MEASUREMENT:
Measure around the fullest part of the chest.
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