Osprey Packs Raven 4L Hydration Lumbar Pack

What Our Gearhead® Experts Are Saying:

“This pack keeps everything dialed in for long rides. The lumbar hydration reservoir is super stable, and the removable tool roll is a lifesaver when I need to make quick fixes on the trail. It’s compact but has all the essentials for any ride.”

When the trail demands everything we’ve got, the Raven 4L Lumbar Pack delivers. Designed for riders who push their limits, this premium hydration pack offers unbeatable stability and purposeful features that keep us moving. The AirScape lumbar back panel and mesh-covered hip belt hug the body for a snug, breathable fit, even on rugged descents. With an integrated 1.5L reservoir, direct-zip hydration access, and a strong magnetic bite valve, staying hydrated on the go is effortless. Dedicated storage, including a removable tool roll, a secure helmet carry, and a stretch mesh pocket for gear, ensures everything we need is close at hand. Lightweight, durable, and thoughtfully designed, the Raven 4 is built for trail-blazing days.

, AirScape back panel ensures stability and ventilation on rough rides, 1.5L lumbar reservoir with bite valve for efficient hydration, Removable tool roll keeps essential repair gear organized and accessible, Dual zippered hip belt pockets provide quick access to snacks and tools, LidLock attachment secures a bike helmet when not in use, Stretch mesh front pocket stows kneepads, gloves, or lightweight layers, Reflective details and blinker light attachment enhance visibility