Osprey Seral 4 hip pack

With the Seral 4, cyclists looking for a low-profile lumbar backpack with integrated hydration have found what they need. The Seral 4 has enough space to store the bike essentials: you can fit a spare inner tube, a CO2 canister, a multi-purpose tool and, of course, snacks. Made of high-strength, high-quality bluesign®-certified recycled nylon with PFC-free DWR coating.

Lumbar Carrier
For cyclists who need to hydrate or store some of their equipment when in the saddle, but who prefer the back-free comfort and minimalist approach offered by lumbar packs.

Stability in the Saddle
The angled waist belt and compression straps, specially designed for cycling, provide stability and comfort by keeping the pack close to the body. This is made possible by a breathable, wrap-around AirMesh waist belt that follows the shape of the pelvis, Osprey's ErgoPull closure system with crossed waist straps that makes the pack adhere to the lumbar region, and side compression straps that bring the load closer to the body, allowing comfortable, secure and stable carrying.

Tank Included
The hydration compartment contains an included 1.5 L lumbar reservoir for medium to short rides and compresses for stability. The magnet attaches to the valve for easy access while pedalling.

Sustainable materials
Made from bluesign® certified PFC-free recycled nylon: a sustainable, robust and durable construction that can withstand years of pedalling.


Features

  • Hydraulics™ 1.5 L lumbar reservoir included.
  • Internal clip for key attachment.
  • LED light attachment point.
  • PFC-free recycled nylon bluesign® certified.
  • Dimensions (cm): 19L / 33W / 11D.
  • Actual weight (with hydration bag): 430 g.


Technologies

Bluesign®
bluesign intervenes at every stage of the textile production chain in order to approve chemicals, processes, materials and products that are not harmful to the environment, workers and end customers.

ErgoPull
Waist belts that tighten from the outside in, allowing a more natural movement than pulling from the inside out.