Viper 13

Embrace the adventure with Osprey’s Viper 13. The largest volume in the Viper series, the Viper 13 has a front stretch mesh pocket, interior dividersin shove-it pocket that creates three seperate compartments and a lower compression strap to pull weight close to the body. With these extra features the Viper 13 is the pack best suited for 3 hours plus of riding with the added capacity for extra food, layers and tools. This hydration pack is also ideal for longer trail runs and day hikes.