Osprey Siskin 12 Hydration Pack


Designed to do it all and hold just enough gear, the Siskin 12 is a mountain bike bag with many of the high-performance features you'd expect from Osprey. The mesh-covered AirScape back panel ensures excellent ventilation and maximum freedom of movement - go ahead, indulge yourself. A LidLock attachment at the front of the bag holds a standard-size helmet, while the side compression straps expand to accommodate a full-face helmet. The zippered U-shaped main compartment has pockets for your cycling tools and space for a change of clothes, a sandwich or some padding. Soft, rolled shoulder straps keep the backpack stable over rough terrain and prevent pinch points when full. A dedicated compartment holds a 2.5-liter reservoir, and zippered belt pockets provide easy access to bars while hiking or a bottle opener afterwards.

  • Hydrapak's Osprey Hydraulics® LT 2.5-liter tank included with zippered direct access.
  • Removable feed valve magnetized to a sternum strap
  • Two side compression straps can also be used as full-face helmet attachments.
  • Main compartment with full U-shaped opening on front panel and tool storage.
  • Tote pocket on front panel.
  • LidLock helmet mount.
  • Loop for intermittent light attachment (light not included).
  • Zippered belt pockets.
  • Scratch-resistant hot-stamped pocket with zipper.


    • Material Nylon, Polyester
    • Volume 12 l
    • Pockets
      • Zippered belt pockets
      • Tote pocket on front panel
    • Reservoir Yes
    • Reservoir Volume Hydrapak 2,5 l
    • Hipbelt Yes
    • Light Fixation Yes
    • Helmet Fixation Yes
    • What's Included
      • 1 x Osprey Siskin 12 hydration pack
    • Recommended Use Cross-country, Enduro

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