Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack
Osprey Packs Seral 4 Hydration Pack

Seral 4 Hydration Pack

10005092

Regular price $89.99 Sale price$64.77 Save 28%
/
Pay using HSA/FSA with flex

Checkout With Your HSA/FSA

Maximize your pre-tax HSA/FSA dollars.

  1. Checkout as a guest.

  2. Select the Flex | Pay with HSA/FSA option.

  3. Confirm your eligibility.

  4. Enter your HSA/FSA card details & enjoy your savings!


Color
All sales are FINAL on closeout items. No Returns.
  • Inventory on the way

Enjoy FREE shipping on all orders over $99! Orders under $99 ship for just $7.95.

All bikes ship FREE, including top brands like Cannondale, Santa Cruz, Cervelo, Gazelle, and Pivot. For the best ride-ready experience, our Gold Label Assembly service is automatically added at checkout for only $79 (regularly $100). This ensures your bike is professionally built, tested, and expertly re-packaged by our certified technicians—It's bike shop quality, direct to your doorstep.

Some bikes may be ineligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

View Full Policy

Riders looking for a low-profile lumbar pack with integrated hydration need look no further than the Seral 4. This slim waistpack features a 1.5-liter bladder with our updated high-strength magnetic coupling for improved hose management even in rough terrain. The Seral 4 has enough storage capacity for ride essentials, such as a spare tube, CO2 and multi-tool and, of course, snacks. Constructed with high-quality bluesign®-approved recycled high-tenacity nylon with a PFC-free DWR coating.

FEATURES:

  • AirScape backpanel with contouring lumbar wrap provides maximum stability
  • Included Osprey Hydraulics 1.5 L lumbar reservoir by Hydrapak
  • Magnetic hipbelt bite valve attachment
  • Large zippered main compartment with reservoir sleeve
  • Main compartment tool organization and internal zippered pocket
  • Blinker light attachment with reflective graphic

Overall rating: 4.6666665 / 5 from 3 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

Works well

"Solid product. Comfortable, easy to adjust the tightness, and non-intrusive for riding. I've had it out on a gravel ride and two mountain bike rides so far, including one fairly chunky ride, and it held up great. I was between 4-5 stars. Only negatives are that it could use some more storage pockets, and the hose comes out from the main zipper rather than a port, but it's not a big deal so far and hasn't pulled open the zipper - I just route it under one of the tightening straps."

Michael H. (4/5)

fadt shipping

"i love my bag"

daisy J. (5/5)

So many uses!

"I bought this as a hydration option - and it is very comfortable and works well. I he cell phone space is secure, and the area that had holds the water pack is very spacious and well protected. Then I discovered that if I take the hydration pack out, the pack itself has lots of space for all kinds of things - bike supplies, food, even clothing. Perfect for rides or trail runs, where I am not wearing a jersey."

Fran F. (5/5)

Q&A