Osprey Viper 3 Hydration Pack

Item: 40-6064
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You don't always need a huge hydration pack with tons of space. Sometimes you need something big enough for a quick ride after work or on the weekends. Enter the Osprey Viper 3. This hydration pack has a 2.5L reservoir for water, and 3L of extra volume for packing the essentials. All together it weighs less than 1.5lbs with the included reservoir. Made from durable Nylon, the Viper 3 uses a BioStretch harness and hipbelt to comfortably connect the pack to your body and keep things in place when riding through rough terrain. Its Hydraulics reservoir holds 3.0 liters of water while also reducing liquid movement for greater stability at high speeds. The mesh front harness stretches out for stashing gear. There is also a large front pocket with an internal zipper pocket, and a special scratch-free sunglass pocket to help protect your shades. The features don't stop there. The main compartment includes loops to hold your bike pump, and there's a LidLock helmet attachment for your bike helmet to be quickly and securely stored without taking up space in the pack. There's also an attachment for a rear light or reflective patch to help increase your visibility in low light. Enjoy your water easily with the magnetic disk for on-the-fly access to the bite valve.


  • Durable Nylon material is lightweight
  • 2.5L included reservoir
  • 3L of extra storage space
  • Biostretch harness and Air Mesh hipbelt are breathable and keep the pack secure over rough terrain and at high speeds
  • Front fabric 'shove-it' pocket with an internal zippered pocket
  • Hydration sleeve zipper allows for direct access for fast fill-ups
  • Stretchmesh front harness holds extra gear
  • Main compartment includes loops to hold a bike pump in place
  • Shoulder strap zip provides a direct path for the hydration hose
  • Magnetic buckle allows for quick access to the bite valve
  • LidLock clip quickly secures your helmet
  • Rear light or reflective patch attachment
  • Heat embossed scratch free zippered stash pocket, perfect for holding eyewear
  • Weighs less than 1.5lbs with the reservoir in the pack
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