Osprey Viper 9


Score a post work endorphin rush... load up the Viper and saddle up for a quick blast around the hills. This baby lets you cart around a genuine 2.5 litres of go-juice for hands-free refuelling while you keep the pedal to the metal.

    • Pack volume: 9 litres.
    • Bladder volume: 2.5 litres.
    • Quickly secure a helmet with the LidLock™ attachment.
    • 180° on-off twist bite valve with magnetic catch on sternum strap.
    • Stuff a jacket or extra top into the front 'shove-it' pocket.
    • Zipped front panel pocket with dividers for keeping tools tidy.
    • Direct zip access hydration sleeve for fast reloading.
    • New 2.5 litre Hydraulics™ bladder included.
    • Pack dimensions: 45cm L x 22cm W x 18cm D.
    • Weight: 550 gm pack plus 175 gm bladder.
  •   Escapist Talon 22 Talon 11 Viper 9
    Volume 32 litres 22 litres 11 litres litres
    Activity Multiday 1-2 day Single day Few hours
    Weight 1030 gm 820 gm 690 gm 550 gm
    Bladder Included No No No Yes
  • Care of your Osprey Hydraulics Bladder.

    • Empty and rinse after use.
    • Drain and air again before storing.
    • To clean, use hot soapy water and rinse thoroughly with hot water.
    • For tough cleaning jobs, add 1/4 cup of baking soda to 3/4 water and shake for 30 seconds. Add 1/4 cup of lemon juice, shake for 10 seconds and vent holding away from face. Repeat 3 times. Expel as much air as possible then leave for 20 minutes. Rinse with hot water. Warning: Adding lemon juice to baking soda makes it fizz so don't leave your bladder unattended for too long.

Made by: Osprey

Customer Reviews

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  • Reviews (9)

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Andrew C.

Osprey Viper 9

Great bit of kit just the berries

Brian F.

Love my Osprey Viper 9

I have never really liked having a bag on my back but I don't even know I'm wearing one! This bag is so light and comfortable it's unbelievable. Thanks Ground Effect

Helen B.

Great pack

Hi. I’ve found this really comfortable, commodious - and the colour so aids visiblity. Love, too, the wide-mouthed drink sack, so good for filling in streams. Helen

Karen D.

Osprey viper 9

This was a gift for my husband as he was always using mine. He loves it and now wants to up grade the bike! Bladder is easy to fill and heaps of storage. He is a bigger guy and found the straps comfortable and easy to adjust. Great work again Ground effect.

Gaelyn D.

Osprey viper 9

Stu says he loves the size, comfy, magnetic drink holder is amazing, easy to wear, good size pockets, likes the stiff bladder. Would like to be able to remove the drink tube. Otherwise it's perfect