Osprey Siskin 12 Hydration Pack - Men's
With room to stash your gear, snacks, extra layers and 2.5 liters of water, the men's Osprey Siskin 12 hydration pack is a must-have pack for long, sweaty singletrack rides.
- Dedicated reservoir compartment with included Hydraulics LT 2.5-liter reservoir helps you stay hydrated on the trail
- Lightweight sternum strap magnet holds bite valve, allowing for easy access to water on the move
- Upper side compression helps to balance and secure your load while also allowing you to carry a full-face helmet
- U-zip main compartment offers convenient access to your gear, regardless of where it's packed
- Front fabric stuff pocket lets you quickly stash extra gear or a rain shell
- LidLock bike helmet attachment stashes your helmet for easy transport between rides
- Zippered hipbelt pockets let you easily stow small items; scratch-free heat-embossed zippered slash pocket holds your sunglasses or electronics
- Blinker light attachment point (light not included)
Imported.View all Osprey Cycling Hydration Backpacks
Gear Capacity (L)
Gear Capacity (cu. in.)
732 cubic inches
Liquid Capacity (L)
Liquid Capacity (fl. oz.)
84.5 fluid ounces
1 lb. 7 oz.
Fits Torso Length (in.)
210-denier honeycomb polyester/420-denier packcloth
Number of Exterior Pockets
Bite Valve Shut-Off Switch
19 x 9 x 9 inches
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