Viper 13L – Gunpowder Grey

Osprey’s Viper 13 is the right choice when you’re out for a big ride in the mountains or the desert. You’ll pedal in comfort with the foam framesheet spreading the load across a ventilated mesh backpanel.The hipbelt is removable while upper and lower side compression straps offer additional stability.

Slip small items into the dual side mesh or harness pocket or stash a layer in the front fabric shove-it pocket for quick access. There’s a scratch-free slash pocket for your shades. Other bike-friendly features include a Hydraulics LT 2.5 liter reservoir with magnetic bite valve retention, internal bike pump storage loops, and Osprey’s LidLock helmet attachment.