Order before 15.00 GMT for delivery in 2-6 business days
30-Day Returns policy
All Mighty Guarantee Included
×
All Mighty Guarantee Included
At Osprey we only design and build high-quality products. That’s why all our products are covered under our All Mighty Guarantee.
DKK
BITE ME.
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.
Weight: 0.4KG
Dimensions (CM): 19H x 32W x 11.5D
Fabric bluesign® approved 100% recycled 600D PET packcloth, DWR treatments made without PFAS
For riders looking for a low-profile lumbar pack with integrated hydration, 4-litre Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-litre 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.
Fabric: bluesign® approved 100% recycled 600D PET packcloth, DWR treatments made without PFAS
Volume: 4L
Litre: 4L
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 organisation and internal zippered pocket • Blinker light attachment with reflective graphic
product
https://www.ospreyeurope.com/shop/dk_en/osprey-seral-4-s2314825Seral 4https://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0017_seralres4_s23_side_apriumpurple_10005092_web.jpg750750DKKInStock/Hydration Backpacks & Reservoirs/Women's Backpacks/Men's Backpacks/Hydration Backpacks & Reservoirs/Lumbar Hydration/Running, Biking & Hiking Packs/Hydration Backpacks & Reservoirs/Siskin, Salida, Savu & Seral/Hydration Backpacks & Reservoirs/Men's Hydration Backpacks/Hydration Backpacks & Reservoirs/Women's Hydration Backpacks/Running/New Season/Bum Bags/Running, Biking & Hiking Packs/Biking Backpacks/Sustainably-Crafted Packs - Leave no Trace586814616821222027227329235438951278<p><strong>LUMBAR CARRY</strong><br />For riders who prefer off-the-back hydration carry and the minimalism provided by a lumbar pack.<br /><br /><br />
<strong>RIDE STABILITY</strong><br />Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit.<br /><br /><br />
<strong>RESERVOIR INCLUDED</strong><br />A dedicated hydration compartment stores an included Hydraulics™ LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry.<br /><br /><br />
<strong>SUSTAINABLE DESIGN</strong><br />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.<br /><br /><br /><br /></p><style><!--
.iframe-container{
position: relative;
width: 100%;
padding-bottom: 56.25%;
height: 0;
}
.iframe-container iframe{
position: absolute;
top:0;
left: 0;
width: 100%;
height: 100%;
}
--></style>
<div class="iframe-container"><iframe title="YouTube video player" src="https://www.youtube.com/embed/EVsMeVxMWe4?rel=0" width="1000" height="500" frameborder="0" allowfullscreen="allowfullscreen"></iframe></div> <div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="html" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;">For riders looking for a low-profile lumbar pack with integrated hydration, 4-litre Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-litre 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.</div></div></div>DKK00https://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0015_seralres4_s23_side_postalblue_10005091_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0016_seralres4_s23_side_black_10005090_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0011_seral_4l_s23_onbody4_postalblue_10005091.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0012_seral_4l_s23_onbody3_postalblue_10005091.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0013_seral_4l_s23_onbody2_postalblue_10005091.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0014_seral_4l_s23_onbody1_postalblue_10005091.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0012_seralres4_s23_sideback_postalblue_10005091_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0013_seralres4_s23_sideback_black_10005090_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0014_seralres4_s23_sideback_apriumpurple_10005092_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0018_seralres4_s23_front_postalblue_10005091_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0019_seralres4_s23_front_black_10005090_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0020_seralres4_s23_front_apriumpurple_10005092_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0021_seralres4_s23_back_postalblue_10005091_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0022_seralres4_s23_back_black_10005090_web.jpghttps://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0023_seralres4_s23_back_apriumpurple_10005092_web.jpgdescription:<div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="html" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;">For riders looking for a low-profile lumbar pack with integrated hydration, 4-litre Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-litre 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.</div></div></div>product_tagline:Unisex 4L biking waist pack with Hydraulics reservoir14530Seral 4 w/Res Black O/S750750https://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0016_seralres4_s23_side_black_10005090_web_1.jpgInStockBlack14529Seral 4 w/Res Aprium Purple O/S750750https://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0017_seralres4_s23_side_apriumpurple_10005092_web_1.jpgInStockAprium Purple14531Seral 4 w/Res Postal Blue O/S750750https://cdn.ospreyeurope.com/shop/media/catalog/product/_/0/_0015_seralres4_s23_side_postalblue_10005091_web_1.jpgInStockPostal Blue<div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="html" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;">For riders looking for a low-profile lumbar pack with integrated hydration, 4-litre Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-litre 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.</div></div></div>Unisex 4L biking waist pack with Hydraulics reservoirPlease Select...19H x 32W x 11.5Dbluesign® approved 100% recycled 600D PET packcloth, DWR treatments made without PFAS4L4LBITE ME.• AirScape backpanel with contouring lumbar wrap provides maximum stability<br>• Large zippered main compartment with reservoir sleeve<br>• Included Osprey Hydraulics 1.5 L Lumbar Reservoir with strong magnetic hipbelt bite valve attachment.<br>• Main compartment tool organisation and internal zippered pocket<br>• Blinker light attachment with reflective graphicBikingUnisex4.000000A pack that includes a Reservoir, Adjustable hipbelt, Sustainable design0.423No
Free delivery on orders over £50 
All Mighty Guarantee Included 
