Osprey Siskin 12 Hydration Pack

The Osprey Siskin 12 Hydration Pack has everything you need to make the most out of your next mountain bike adventure. Featuring a super breathable mesh back panel and a 2.5-liter reservoir so you can stay cool and refreshed, the Siskin 12 also incorporates a tool pocket for quick repairs and the LidLock attachment system that accommodates a full face helmet.