Alpinetrek expert Christian
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Osprey - Viper 9 - Hydration backpack

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Attributes & features
Suitable for:
Hydration backpack
Recommended use:
Trail running; Mountain biking
9 l
210D polyester ripstop; 600D polyester
Carry system:
punched EVA strap system with hydrostatic plate and removable harness
via the breathable carry system
Additional compartments:
Sunglasses compartment; Front zip pocket; internal pocket for pump and tools; Lid pocket
Hydration system:
3 l hydraulics reservoir
500 g
Flashing light attachment; LidLock helmet attachment
Item No.:
Product description
Whether it's an epic relay race, steep switchback trail, or a challenging cross country ride, trust your thirst-quenching needs to the Osprey Viper 9 Hydration Pack. The AirScape back panel and BioStretch harness keep the pack from shifting around during fast-paced pursuits and are ventilated to maintain comfort when you break a sweat. Even better, the full-featured three-liter Hydraulics Reservoir is shaped to match the contour of the back panel, which means better balance and less sloshing.

  • AirScape back panel provides cushion and ventilation for trail runs and cross country rides
  • BioStretch ventilated harness features EVA foam padding and spacer mesh for next-to-skin comfort
  • 20mm webbing hip-belt keeps the pack balanced and in place
  • Pack size fits a compressible windbreaker and a small snack
  • Separate hydration sleeve provides quick access to the reservoir
  • Three-liter Hydraulics Reservoir features a HydroStatic backer plate that maintains a low-and-wide profile, preventing interference with your pack's suspension
  • Reservoir is made from metallocene PE material that is exceptionally strong, taste-free, and BPA- and PVC-free
  • LidLock clip allows you to quickly attach your helmet when not in use
  • Stretch mesh front pocket is ideal for stashing a rain jacket or extra layers
  • Main compartment has pump-specific sleeves
  • Top zippered pocket has a soft embossed fabric for stowing sunglasses and electronics
  • Magnetic sternum buckle pairs with the magnetic bite valve to keep the hose secure while riding

Ask our experts
Alpinetrek expert Christian

+49 7121 70120

Mo. - Fr. 09:00 - 16:00 (CET)

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