Can be loaded up for all-day riding but works best when travelling fast and light

Product Overview

Overall rating:

Score 9

Osprey Viper 9 hydration pack


Osprey Viper 9 hydration pack review


Price as reviewed:


Osprey’s Viper 9 is a compact daypack that comes with a 2.5-litre reservoir, and five varying sized compartmentalised pockets, giving you a place for everything. A magnet holds the bite valve in place.

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Despite it only having nine litres of storage space, it seems to be able to carry more — there was room to spare even after loading it up with my pump, multi-tool, snacks, windproof and first-aid kit.

In fact, the only problem is you can overload it, not a great idea as the waist straps aren’t that good at supporting heavier loads.

With neat back-panel cushioning and a mesh material, sweaty back syndrome is reduced. The rest of the pack is built out of a tough synthetic material that has easily dealt with the usual barrage of scuffs and scrapes.

It sits well and there are lengthy straps to adjust to rider height. I rode mostly with just the sternum strap secured across the chest and, while there is a waist strap to stop the pack swinging, at only 20mm thick and with very little in the way of padding, it does dig in, especially if you’re packing a little extra girth.

The Osprey Viper 9 allows organised carrying and can be loaded up for all-day riding, but it works best when travelling fast and light.


Colours:Black, orange, green