evo.com | Osprey Hydration Packs > The Osprey Berm 4 Hydration Pack is a trail-ready sipping companion with a sleek, low profile fit that won't get in the way when you're working hard. A 2.5L reservoir keeps you hydrated through the climbs, and a zippered front pocket provides enough space for tools and snacks. Grab it and go. 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. Zippered Front Pocket with Key Clip 15.4" x 7.5" x 5.5" / 39 x 19 x 14 cm Main bluesign(R) approved 100% recycled 300D polyester, DWR treatments made without PFAS. | Osprey Berm 4 Hydration Pack 2026 in Purple | Polyester