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Osprey Packs
Seral 4L Hydration Pack

4.5 out of 5 stars
2 Review

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Hydration Packs - Small we have in stock.

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Why We Like The Seral 4L Hydration Pack

Whether we are out for a foothill bike ride, quick afternoon hike, or are just swinging the dog around the block we strap-on the Seral 4 Hydration Pack. This pack keeps water nearby at an arms reach so we can stay hydrated.


Details

  • Low profile hipbelt built to keep you hydrated on the move
  • Breathable backpanel locks in a secure and reliable fit while moving
  • 1.5L reservoir keeps you hydrated while you hike, run, or bike
  • Durable material holds up against rugged treks
  • Water-resistant finish fends off light precipitation
  • Zippered main compartment lets you bring just the essentials
  • Magnetic hipbelt bite valve attachment keeps your water nearby
  • Item #OSPZ1A7
Responsible Collection
Bluesign Approved, Recycled/Repurposed
Material
[face fabric] 600D recycled polyester, DWR finish, [accent, bottom] recycled 400D nylon, DWR finish
Volume
4L (244cu in)
Hydration Compatible
yes
Reservoir Included
1.5L Hydraulics Lumbar Reservoir
Access
top zip
Pockets
1 internal zippered
Dimensions
7.5 x 12.5 x 4.5in
Claimed Weight
9.7oz
Manufacturer Warranty
lifetime

Overall Rating

4.5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 1 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?

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4 out of 5 stars

September 12, 2024

highly functional, hard to dry out

Familiarity:
I've used it several times

Functionally, this thing is perfect. Gives me 1.5L of water for my long walks. It's nice not having to carry a water bottle. The struggle though is drying this thing out when finished. It's a very awkward shape, and it "sticks" together when damp inside, so the residual water droplets can't drain/dry. My best solution is to insert 2-3 big wooden mixing spoons into it (all at different angles) and hang upside down via the drink tube. This allows droplets to drain and air to flow to most of the inside of the bag for evaporation of the rest. Also, remove the mouth piece from the tube so water can drain from the tube.

TerryA
Backcountry.com

Originally reviewed on Backcountry.com

5 out of 5 stars

January 31, 2024

Great minimalist hip pack

Familiarity:
I've used it several times

Osprey makes great packs! This hip pack works great if don’t carry all your tools and stuff on a ride. Great for the minimalist!

jacques G
Backcountry.com

Originally reviewed on Backcountry.com