Viper 3

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3L backpack with 2.5L hydration bag. Recommended for runnings, mountain biking or excursions. With great stability, ventilation and pockets.


  • Backpack with hydration system included. Backpack for sports such as running, mountain biking or trekkings where a backpack designed to transport and use a hydration system with little load and good ventilation and stability is required. Because of its volume, Osprey recommends it both on trails from 1-3h as in day trips.


  • Back designed to maintain ventilation and total stability . With foam AirScape HDPE panel with integrated ventilation points in addition to a stitched mesh and glued to the back providing stability and ventilation.

  • Shoulder pads with a mesh that completely covers them. these also have hollow points of ventilation. Designed not to disturb the neck.

  • Narrow strap lumbar belt. With small insert fins.

Pockets and adaptations:

  • 2.5 liter hydration system with removable tube. With a specific large opening zippered pocket. The zipper goes from the middle of a shoulder pad to the top of the opposite. Fixation of the hydration nozzle to the magnetic shoulder strap, being very comfortable and reliable to use.
  • Open gusset outer compartment, adjustable by clips.
  • Front pocket with a compartment and key clip.
  • Reflective front tape to place rear light. The front designs are also reflective.
  • Helmet holder with front Lid Lock system. Adjustable rubber with a stop, inside you can place the helmet carrying it in the upper-middle part of the backpack.

More Information
Season of useAutumn, Spring, Summer
Ecological note (0 to 5)1 🌱
Ecological CertificatesEOCA
Volume (l)3
Dimensions (cm)42x20x17
Size guidePack Sizer
Weight (gr.)420 (con bolsa de hidratación)
Hydration SystemsCompatible and Incorporates
RaincoverDoes not incorporate
Gear loophelmet holder, light holder
Made inAsia
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