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Osprey Seral 4 (Postal Blue)

RM 465.00
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Product Description

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.

Key Attributes


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


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


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


+ 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 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

Carry Information

Airscape Lumbar Backpanel 

  • Extra-thick ridged foam with center air channel for excellent ventilation


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




 4 L


 19H X 32W X 11.5D CM     


 0.423 kg



bluesign® approved 100% recycled 600D PET packcloth, DWR treatments made without PFAS


bluesign® approved 100% recycled 400D high-tenacity nylon, DWR treatments made without PFAS

All Mighty Guarantee

All Mighty Guarantee from Osprey. Lifetime warranty with any reason from Osprey.

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  • All products come with 1 year limited warranty except those specified below :
    • Most of Ledlenser products come with worldwide warranty period of 2 years from the date of purchase and 7 years if you register your product online through the warranty card that comes in the packaging.
    • Altra, Vibram Fivefingers and Skinners shoes come with 3 months warranty. 
    • Summer school bags, Sipesen backpacks, Nike bags, and Polo House luggage has no warranty.
  • Warranty are against manufacturing defects only, it does not include wears and tears, and or damages caused by misuse. 
  • For more information on warranty, please view our warranty policy.

Return & Exchange

  • All items can be returned or exchanged within 5 days upon receipt of your goods if they have not been worn, altered or washed. All items must be returned in their original condition with all tags attached, and must be returned in their original packaging. Please click our return and exchange policy for more details.


  • Free Delivery within West Malaysia for any order with RM80 and above. 
  • The deliveries to Sabah, Sarawak, and Labuan are serviced by POS Malaysia. Delivery lead time will take up 1 to 3 weeks time. 
  • We currently provide deliveries to Malaysia and Singapore Only.
  • For any other international delivery, please email us at sales@gotravel-outdoor.com for arrangement.
  • Please click on shipping and delivery for more information.
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