evo.com | Osprey Hydration Packs > The Osprey Raven 14 Hydration Pack features the advanced Hydraulics(TM) reservoir and thoughtfully designed storage for everything from casual singletrack rides to full-day downhill sessions. This category-leading pack has earned its reputation among mountain bikers for delivering performance when it matters most, whether you're tackling technical terrain or flowing through forest trails. LidLock Bike Helmet Attachment 9.8H X 8.3W X 16.9D in Hydration Sleeve with Direct Zip Access and Hose Path Scratch-Free Heat-Embossed Zippered Slash Pocket Main bluesign(TM) approved 100% recycled 210D bird dobby nylon, DWR treatments made without PFAS. | Osprey Raven 14 Hydration Pack 2026 - O/S in Black | Nylon