evo.com | Osprey Hydration Packs > The Osprey Berm 12 Hydration Pack is a trail-ready sipping companion with enough space for those all-day epics. A 2.5L reservoir keeps you hydrated through the climbs, and thoughtful organization means tools, snacks, and layers all have a place. Grab it and go. Front Panel Shove-It Pocket AirScape Backpanel Mesh covered ridged foam allows maximum ventilation while keeping the load close to the body. Reservoir Included Enjoy hydration at your fingertips with a magnetic bite valve attachment and easy-fill, S-zip access to the included Hydraulics(TM) LS 2.5L Reservoir. Main bluesign(R) approved 100% recycled 300D polyester, DWR treatments made without PFAS. 16.9" x 9.1" x 9.1" / 43 x 23 x 23 cm | Osprey Berm 12 Hydration Pack 2026 in Black | Polyester