Online exclusive
Viper 13 Rucksack
Colour: Black
Low in stock

Standard Delivery

Monday 24ᵗʰ Dec - Wednesday 26ᵗʰ Dec

High-energy activity requires keeping hydrated. That's why the Viper 13 Rucksack comes equipped with an integrated 2.5-litre Hydraulics LT Reservoir, so you can push yourself to the limit. The reservoir is accessed via an asymmetric zip for quick and easy refills. The reservoir incorporates two chevron welded baffles to help maintain shape when full and limit sloshing from the water. Osprey solved the wandering hose' issue by placing a magnet in the pack sternum strap and bite valve. This holds everything neatly in place when not needed; yet ensuring quick and easy access when it is.

The ventilated AirScapack panel and BioStretch harness keep you cool in hot conditions whilst still offering flexibility for movement without restriction. The LidLock attachment provides a quick and secure attachment point for your helmet without taking up space inside your pack. Gear and bike tools are easily organised and carried within the quick access internal compartments. The front compression pocket provides an ideal space for bulky additional items or used as a handy place to stash wet items on the go. Lower side compression means that your load is secure over the roughest of terrain.

A removable webbing hipbelt allows you to shed extra weight if you're really counting the grams. Reflective graphics and LED light attachment help to keep you visible for when the weather turns or night falls.

  • BioStretch ventilated harness
  • AirScape backpanel with foam ventilation ridges
  • LidLock bike helmet attachment
  • Reflective graphics
  • Hydraulics LT 2.5L Reservoir included
  • Stretch pocket on harness
  • QuickConnect hose attachment
  • Front zipped pocket
  • Internal hydration sleeve
  • Internal key attachment clip
  • Internal tools/spares organiser
  • Large front compression pocket
  • LED bike light attachment point
  • Magnetic lockable bite valve
  • Removable ebbing waist strap
  • Removable webbing hipbelt
  • Side compression straps
  • Sternum strap buckle with magnet
  • Stretch mesh side pockets
  • Max dimensions: 45 x 23 x 18cm
  • Weight: 580g
Product Code: P3114097
A couple with Osprey backpacks walking up a rocky hill somewhere in the mountains.

Santa Cruz California 1974. Mike Pfotenhauer sat at his sewing machine with a head full of ideas and a burning passion to build the most innovative backpacks to the highest standard.


Fast forward to 2015. One man’s vision has grown into a wide range of Osprey rucksacks and accessories that are being used from the highest mountains to the most remote islands and everywhere between.

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