Whether you're mountain biking, running, or hiking, Osprey's Viper 9 is prepared to tackle the trails. Lightweight and durable, it's made from triple ripstop polyester material and has a 3-liter Hydraulics reservoir. For storage, there's a main compartment with an internal tool organizer, a sunglasses pouch, a "shove-it" pocket for a jacket, and Osprey's LidLock helmet clip. Other features that will have you singing this pack's praise include a comfy BioStretch harness, a ventilated back panel, a removable webbing hipbelt, and a magnetic bite valve that stays put no matter how rough the trail gets.
Viper and Verve Series ~ Osprey Hydraulics
Osprey LidLock Tech Video