Osprey Seral 4L Biking Waist Pack with Hydraulics Reservoir, Dustmoss Green

Look no further than the Seral 4 if you're in search of a low-profile lumbar pack with integrated hydration for riders. This slim waistpack comes equipped with a 1.5-liter bladder featuring our latest high-strength magnetic coupling, ensuring improved hose management even on rough terrain.

The Seral 4 offers enough storage space for essential items like a spare tube, CO2, multi-tool, and snacks. Its bike-specific, angled hipbelt and compression straps guarantee stability and comfort by keeping the pack close to your body. This is achieved through a breathable airmesh wrap hipbelt that contours over the hipbone, Osprey's ErgoPull cross-body waist strap closure system that pulls the pack into the lumbar, and side compression straps that bring the load closer to your body for a secure and stable carry.

Designed for riders seeking hydration or gear storage while riding, the Seral 4 is perfect for those who prefer the minimalist off-the-back carry of lumbar packs. Made with PFC-free recycled bluesign®-approved nylon, this pack offers a sustainable and durable build that can withstand years of riding.

Efficient and stylish, the Seral 4 is designed with storage options tailored to each season, allowing you to make the most of every exploration. The ErgoPull waist strap closure system ensures a proper, snug, and stable fit for added convenience and comfort.

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