Osprey Viper 13


Weight 1 lb 7 oz / 640 g
Capacity 800 cu in / 13 L

Manufacturer's Description

Visit Osprey's Viper 13 page.

Retailers' Descriptions

Here's what other sites are saying:

Built for 3+ hours of riding and offering plenty of organization options, the Osprey Viper 13 hydration pack totes your gear plus 3 liters of water for your extended rides.


Sure, that emergency snake-bite kit you have is pretty rad. But during your mountain-bike ride, chances are good you're going to need access to water, an extra layer, and a tire repair patch long before you'll have to tend to a set of thin puncture wounds on your calf. With the super-comfortable Osprey Viper 13 Hydration Pack on your back, you'll be able to tote along the day's essentials and even have some room left over for less-crucial items, like anti-venom. HydraForm reservoir is made with BPA- and PVC-free materials and features a design that squeezes your water supply for easier drinkingSpacerMesh back panel provides super-light cushioning for a comfortable fitBioStretch shoulder harness system features mesh-covered foam for superior comfort and small sleeves to hold your energy gel pouchesLidLock helmet clip feature allows you to attach your bike helmet to your pack for hands-free storage. Wide variety of organizational pockets keep your tire pump, patch kit, and multi tool in placeSide compression straps reduce pack volume if you're carrying a smaller loadReflective detailing on front panel and a blinker-light attachment loop help keep you visible

- Backcountry.com

The Osprey Viper 13 provides enough carrying capacity to bring all the necessary gear on a full-day mountain biking, trail running or day hiking adventure. The included 3 liter HydraForm reservoir and magnetic bite valve attachment keep dehydration at bay.

- CampSaver.com

Free Shipping. Osprey Viper 13 Pack FEATURES of the Osprey Viper 13 Pack Ergo Pull Hipbelt Hydration Lid Lock Panel Load Access Shove-it Pocket Stretch Mesh Front Pocket Stretch Mesh Side Pockets Top Slash Pocket Zippered Front Panel Pocket This product can only be shipped within the United States. Please don't hate us.

- Moosejaw