FREE SHIPPING on orders of $50 or more.* Same day shipping before 3PM Pacific.
Questions? Call our experts!
Click to zoom
Osprey Seral Hydration Pack
Osprey Seral Hydration Pack

Seral Hydration Pack

Mfg PartNum:
  (1 customer reviews)
Earn $8.50 in Rewards credit. Click to learn more.
This color is not eligible for Rewards points
In Stock Now
Please Confirm Color
This item is currently out of stock. Click Notify Me to receive an email when the item becomes available.
InstantPrice MatchWhat is this?
Qualifies for Free Shipping!

Durable, off-roading stability.

There are a lot of luxuries we can go without on a mountain bike ride, but water isn't one of them. The Osprey Seral Hydration Pack is an off-the-back hydration pack designed to carry an included with a 1.5-liter lumbar reservoir.

With a magnetic bite valve that attaches to the hip belt, nourishing water is always within reach. Compression straps pull the pack towards your lower back and wrap around your hips for supreme stability. Even over difficult terrain, we ensure this lumbar pack won't creep around while you ride. A zippered main compartment is big enough for a spare tube, patch kit, mini pump, tire lever, multi-tool, and anything else you might need.

Your next adventure is calling, so prepare for excellence with a hydration pack that can go the distance with you.


  • Include a 1.5L lumbar reservoir with magnetic bite valve for easy access to water at any time
  • Bike-specific angled hipbelt and compression straps for maximum comfort and stability
  • Extra thick backpanel ridged foam with center air channel for great ventilation
  • Airmesh wrap hipbelt with zippered fabric pockets provide breathability
  • ErgoPull waist strap closure system allows for proper snug and stable fit
  • Access water bottles with ease with specialty-made bottle pockets
  • Off-the-back minimalism for the ultimate hydrating experience

  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


    Bag Type: Waist 

    Obsidian Black

    Mfg PartNum: 10001793 

    Slate Blue

    Mfg PartNum: 10001795 

    Molten Red

    Mfg PartNum: 10001794 

    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Bladder no Bueno
    by StanF
    Las Vegas, NV

    This a very well made waist pack as youd expect from Osprey. My problem is the bladder. Its extremely difficult to fill without making a mess. The whole top of the bladder opens with a terribly designed clip that goes over the mouth of the bladder with it folded over. The bladder itself is partitioned at several points making it difficult to clean and rinse out. I wish I would have gotten the model that just held two water bottles.

    Reviewed 7/8/2019
    Was this review useful to you? Yes/No
    Thank you for your feedback.

    Articles will open in new tab.

    A guide to keeping your body properly fueled and hydrated on your bike.
    What you need for a road ride.