Gear Reviews Mountain Biking

Osprey Seral – MTB Pack Review

Osprey Seral – MTB Pack Review
8.5
Our Rating
Osprey Seral – MTB Pack Review
Cut to the Chase
The Osprey Seral offers more than the standard sized packs in this category. The Seral has a 1.5ltr bladder, excellent storage options, and great levels of comfort and stability. If you prefer the lumbar style to an 'over the shoulder' pack yet still need something for those longer rides, the Seral is an excellent choice.
Pros
Impressive amount of storage capacity.
Air mesh, zippered hip belt pockets.
Airspace offers a highly breathability back panel.
Premium 1.5lt Hydrapack bladder system.
Cons
Bladder hose is slightly too long.
ErgoPull waist straps need to have a "tidy up" solution.

The Seral is a mid-sized lumbar pack designed for longer rides.

The trend for lumbar packs is still going strong in the mountain bike world, and Osprey has turned their attention fully to this trend with the addition of the new Seral and Savu packs.

Whether your preference is for the classic over the shoulder pack or a lumbar pack, there are a few things that we can’t go without, especially for longer rides. Water storage, and enough of it, and storage options for tools and first aid items.

We’ve done it ourselves, gone for a ride with hardly anything, but chances are something always seems to go wrong on those rides, sod’s law eh. So these days we always pack the bare essentials to get us out of a fix and also help others on the trail.

Well, if you’re looking for something in between a pack and the minimalist single bottle approach, then the Seral could be the ideal pack for you with a 1.5-litre bladder and a ton of storage on offer.

Features

Hydration

The Seral includes a 1.5-litre Hydrapak bladder system which features our preferred sliding open top closure. This allows easy access for filling and emptying, cleaning and even dropping in some ice on those super-hot days. The large removable bite valve uses a soft rubber mouthpiece for extra drinking comfort and has an open and closed position to stop any leaking whilst riding.

osprey seralThe Seral comes with a 1.5 litre Hydrapak bladder and hose, with a soft bite valve. Photo: ©Richard McGibbon
The hose has an adjustable, magnetic attachment. Photo: ©Richard McGibbonThe hose has an adjustable, magnetic attachment. Photo: ©Richard McGibbon
osprey seralThe magnetic hose fastner on the pack can be moved for fine tuning. Photo: ©Richard McGibbon

Storage

There’s a lot of storage space in the Seral lumbar pack. A single large main compartment with enough for a spare tube, co2, mini pump, tire lever and multi-tool, plus more. There are two internal pockets, one elasticated and one zippered weatherproof pocket ideal for electronic items and a hook to secure your keys. In addition to all of this, there are zippered hip pockets on each side of the belt for snacks, SPF or whatever takes your fancy. There’s a lot of storage space in this pack.

osprey seralThe Seral offers 7 litres of internal space, a lot of room for your gear. Photo: ©Richard McGibbon
osprey seralThe Seral features internal zippered pockets, key hooks for organising your junk. Photo: ©Richard McGibbon
osprey seralAir mesh, zippered hip pockets, perfect for snacks and tools. Photo: ©Richard McGibbon

Carrying Features

Lumbar packs can move around a fair bit, especially when loaded up. Osprey has countered this by adding in compression straps,something we usually see on their hiking packs. This adds extra stability on technical terrain and stops the pack from creeping upwards.

For extra comfort, the Osprey Seral comes with a decent amount of padding and ventilation. The main back panel features thick foam padding with mesh holes for breathability and Ospreys Airscape channel in the centre, for improved ventilation. All of this is pulled together nicely with Ospreys ErgoPull waist strap closure system, keeping the entire pack stable and secure on your hips.

osprey seralOspreys Airspace channel an mesh hip pockets create great airflow and breathability. Photo: ©Richard McGibbon
osprey seralThe double ErgoPull waist strap for a secure fit. We would like to see these tidied up in the next version. Photo: ©Richard McGibbon
osprey seralCompression straps to tighten the pack down. Photo: ©Richard McGibbon
osprey seralBlinker light attachment. Photo: ©Richard McGibbon

On The Trails

Out on the trails, the Osprey Seral felt secure and comfortable. Considering it was carrying 1.5 litres of water, (that’s already 1.5 kilos) plus I had a spare tube, iPhone, car keys, mini pump, CO2, mini tool, first aid items and some other mechanical odds and sods, it felt secure, even on the rougher stuff.

The AirScape back panel and lumbar wrap combined with the air mesh hip belt, helped reduce sweaty back syndrome and the ErgoPull waist strap closure maintained a snug and stable fit throughout the testing. However, we would like to see Osprey add one tiny little addition, and that’s to include elasticated hoops on the waist straps because they tend to hang down and just look ugly. With a couple of elasticated hoops, these could be rolled back and kept out of the way.

osprey seral

Above: The Seral is a great option for something in-between a bottle only or an over the shoulder pack. Photo: ©Richard McGibbon


The bladder hose did give us pause for concern due to its long length, but we were proven wrong as it didn’t drop down onto the frame or come loose of the magnetic fastener whilst riding. However, it is tricky to place back whilst riding. The magnetic fastener on the hose tends to slip down causing some issues with re-attachment, only whilst riding however. This fastener could do with being a little tighter on the hose and that would solve the problem. Otherwise, it’s fine if you’ve stopped to drink.

We also tested the Seral with a lot less gear inside to see how it fared when half full. On this occassion we used the compression straps to tighten up the empty spaces. This worked a treat and we can see how adaptable this pack can be for short or longer rides.

With 1.5 litres of water carrying ability, the Seral definitely allows you to go on those longer rides further afield than just a single bottle, and if you ombine it with another bottle on the frame, you’re getting close to 3 litres on-board.

osprey seral

Above: The bike-specific, angled hip-belt and compression straps provide stability and comfort, keeping the pack close to your body. Photo: ©Richard McGibbon

osprey seral

Above: The Osprey Seral is a great solution if you want to go a little bigger with a lumbar pack. Photo: ©Richard McGibbon


Where to Buy / Price

You can purchase the Osprey Seral from most good outdoor retailers, or head on over to the Osprey website.

Price: $99.95 AUD


Specifications

  • Included Osprey Hydraulics® 1.5L lumbar reservoir by Hydrapak.
  • Magnetic hip-belt bite valve attachment
  • Bike-specific, angled hip-belt and compression straps provide stability and comfort by keeping the pack close to your body.
  • AirScape back panel with contouring lumbar wrap.
  • Airmesh wrap hip-belt with zippered fabric pockets provide stability and breathability.
  • ErgoPull waist strap closure system allows for proper snug and stable fit.
  • Extra thick ridged foam padding.
  • Easily accessible zippered main compartment with internal tool organisation.
  • Dual zippered hip-belt pockets.
  • Blinker light attachment.
  • 1.5 litre bladder included.
  • FABRIC:
    • Main: 900x600D Polyester
    • Accent: 210D Nylon Duramax
    • Bottom: 420HD Nylon Oxford
  • Weight: 0.37kg
  • Dimensions: 20H X 33W X 15D cm

Jason Lorch

Chief Editor at Tyres and Soles
Born and grew up in Wales but now a fully fledged Aussie. A passionate mountain biker, hiker and general nature addict. I'm also a bit of a muso and enjoy a good craft beer every now and again (probably too often).

I hope what we do here at Tyres and Soles will inspire people to get out there and experience first hand, the natural wonders that surround them. So, pump up those tyres, don your favourite boots. Grab a mate, a partner, a pet… and head out into nature. But tell us all about it when you get back.
Jason Lorch

Latest posts by Jason Lorch (see all)

Follow @tyresandsoles
  • The Leatt DBX 3.0 is one of the safest mountain bike helmets in the market. What’s protecting your noggin today? 🧠 | 📸 @seanmurr123 / @seaninthedirt
  • The weekend is one more sleep away. What are your plans? 😛 | 📸 @richardmcgibbon
  • The @granite_design ROCKnROLL is a perfect companion to take on those longer rides where a trailside fix is crucial to getting you home. The whole package weighs only 136g, so adding it to your pack or hip belt is low-cost in terms of weight, considering the ROCKnROLL has all the bits that you'll need to do your trailside fix. Now you can live the ROCKnROLL lifestyle you've always dreamed about!
  • Wow! Pretty much sums up what we thought of the @hentydesigns Enduro Backpack. If you're intrigued by these new age bum bags then have a read of our review on our website. | Photo credit: @richardmcgibbon
  • The new Salomon Speed Cross 5 W.  Whether you are putting in the training miles or kicking off your next race this lightweight, form fitting shoe is a great option to tackle long runs on a variety of demanding terrain. | 📸 @richardmcgibbon | @salomonrunning @salomon
  • WHISTLER PERFORMANCE LUBES

There is a concern that eco-friendly products are not as effective as non-eco products. We have to call bullshit on this. The WPL range of lubricants is as good, if not better, than any non-eco friendly product on the market. best of all it doesn't harm the environment or you! | 📸@richardmcgibbon | #lube #lubedup #silkysmooth
  • With so many hydration gels, tabs and powders out there, it can be a little bewildering which ones to choose. We all have our favourites and over the years we tend to stick with what we know, so when we discover a new brand, we’re a little reluctant at first to go and spend our hard earned money on something that we don’t know will work for us, but after reading about @hdxmix story and the founder behind it, we must admit, we got very interested, indeed. 📸 @richardmcgibbon
  • If you are after a very high-quality post that works flawlessly, got it in the looks department, comes in a good range of sizing options and don’t want to sell a kidney to pay for it, you just can’t go wrong with the OneUp Dropper V2 and remote combo. Read the full review in our bio link. 🤟 | Photo credit: @seanmurr123 |
Rider: @instarrdan
  • The Osprey Savu lumbar pack allows you to carry two bottles at once so you can keep riding for longer. The pack is compact and secure, even on the roughest trails and has excellent storage options to store all your ride essentials. @ospreyaustralia ⁣⠀📸 @richardmcgibbon ------------
  • The new Salomon Speedcross shoes are incredibly comfortable and supportive, and come with a super-aggressive grip that can handle the toughest terrain. Well done Salomon, you’ve just upped your game. A big thumbs up from us. 👍 | 📸 @richardmcgibbon
  • The Granite stash multitool in action. #stashnhideit in your steerer and you will always be ready!
  • If you've got a crush on your bike, then treat it with the @krushoz cleaning products, it would be rude not to. 😍 | Photo: @richardmcgibbon