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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.

  • Features

    • 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
  • Technical Specs

    Best Use

    Mountain Biking

    Frame Type

    Internal Frame

    Gear Capacity (L)

    12 liters

    Gear Capacity (cu. in.)

    732 cubic inches

    Reservoir Compatible

    Yes

    Reservoir Included

    Yes

    Bottle(s) Included

    None

    Liquid Capacity (L)

    2.5 liters

    Liquid Capacity (fl. oz.)

    84.5 fluid ounces

    Weight

    1 lb. 7 oz.

    Fits Torso Length (in.)

    17-21 inches

    Fits Waist/Hips

    25-50 inches

    Material(s)

    210-denier honeycomb polyester/420-denier packcloth

    BPA Free

    Yes

    Frame Material

    Atilon foam

    Pack Access

    Top

    Number of Exterior Pockets

    4

    Hipbelt

    Yes

    Hipbelt Pockets

    Yes

    Bite Valve Shut-Off Switch

    Yes

    Dimensions

    19 x 9 x 9 inches

    Gender

    Men's

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