Joey W.wrote a review of Osprey Packs Raptor 10L Backpack on October 26, 2019
Familiarity: I've put it through the wringer
This is my 6th Osprey backpack for MTB. The packs are awesome, sensible compartments, comfortable for 3-4 hour rides and a good looking design. The fail comes into play with the bite valves, They begin leaking after only a short time of use, so be sure to keep spares in stock. Yes, they can twist and lock, but not an easy task to unlock the valve when both hands are on the bars while riding. So much for on the go hydration. This is a known issue and long overdue for Osprey to remedy.