SKU: 68332215019

Osprey Seral 4

Sale price$117.00 Regular price$130.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Osprey Seral 4For riders looking for a low profile lumbar pack with integrated hydration, 4 liter Seral is the perfect trail companion. This slim waist pack features the next gen 1. 5 liter Hydraulics reservoir with high strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi tool and, of course, snacks. Lumbar Carry For riders who prefer off the back

For riders looking for a low-profile lumbar pack with integrated hydration, 4-liter Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-liter Hydraulics reservoir with high-strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi-tool and, of course, snacks.

Lumbar Carry
For riders who prefer off-the-back hydration carry and the minimalism provided by a lumbar pack.

Ride Stability
Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit.

Reservoir Included
A dedicated hydration compartment stores an included Hydraulics™ LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry.

Sustainable Design
+ bluesign® APPROVED main body and bottom fabrics + GRS-certified 100% recycled main body and bottom fabrics + All DWR treatments made without PFAS + BPA-free reservoir.

AirScape™ Lumbar Backpanel
Extra-thick ridged foam with center air channel for excellent ventilation.

Hipbelt
Airmesh wrap hipbelt with zippered fabric pockets provide stability and breathability, ErgoPull waist strap closure system allows for proper snug and stable fit.

Features:

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

Specifications:

Volume: 4.0 Litres
Dimensions: H 4.5 x W 12.5 x D 7.5 Inches
Weight: 0.93 Pounds

Fabric:

Main
bluesign® APPROVED, 100% recycled 300D polyester, DWR treatment made without PFAS

Liner
bluesign® APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS

Backpanel & Harness Mesh
bluesign® APPROVED, 100% recycled polyester

SKUs
10007287 (Raven Black)
10007288 (Pediment Grey Dust Print)
10007289 (Botswana Purple Dust Print)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 68332215019

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4.3 ★★★★★
Based on 27 reviews
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K
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Kendra
Omaha, US
★★★★★ 4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
K
Verified Purchase
K
Cuba, US
★★★★★ 5
Good quality socks
Size: X-Large, Color: (001) Black / Black / White
Great value and great product and comfort. Not thin and wears well not like thin socks in a size that fits
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
C
Verified Purchase
Cookie
Carnegie, US
★★★★★ 5
Socks
Size: Medium, Color: (001) Black / Black / White
Great price, perfect fit.
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Reviewed in the United States on January 23, 2026
L
Verified Purchase
Lyssetic
Belleville, US
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
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Reviewed in the United States on May 28, 2019
C
Verified Purchase
Carol
Fort Morgan, US
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
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Reviewed in the United States on December 2, 2018

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