The Women's Osprey Raven 10L Hydration Pack is a hydration pack for mountain biking. Carry the essentials and sip when thirsty from the integrated Hydraulics LT 2.5L reservoir. Every steed needs a little fix once in a while, and the included tool roll in the dedicated lower compartment comes in handy on the trail. When the ride is over, attach your helmet with the LidLock on the outside of the pack and head into the local watering hole for a big burger and tasty beverage.