Shimano 2013 – Bags!

by 7

One of the surprising finds at iceBike* this year was this whole range of hydration (and messenger) bags from Shimano. They’re out late in the year, kind of autumn time, but Madison had got permission from Shimano to show them off to us early.

The Unzens. They'll come in orange, red and grey and 6, 10 and 15 Litre sizes

The range is a ground-up bit of design, using new materials and designs, rather than co-opting someone else’s. Wisely, Shimano has used the respected bladder system from Hydrapak, rather than trying to reinvent the valve, as that’s often where companies can fall down when entering the market.

The bags all use very stretchy material that lets you fill them full, yet keeps things snug if it’s not packed to the gills. Shimano calls it its ACCU3D technology and it tries to keep all its bags body-hugging, and aero, with no loose straps anywhere.


The Unzen series of bags is its top-end race and trail packs. Coming in 6L, 10L and 15L sizes (actual cargo capacity, volumes don’t include the bladder) they all have the Rider CrossFit Harness which does away with the need for a waist strap and keeps the pack stable ‘during aggressive moves’. We’re assured that it’s also boob (and moob) friendly too.

Neat and pretty bounce-proof on first impressions.

The Unzen packs are side-opening. The idea being that you can just shuck one arm out and swing the bag round, ready to access the insides, rather than undo a couple of straps and take it off completely. All the zip-pulls are big and glove-friendly and there’s an adjust able shoulder-yoke to fit different back lengths. The Unzen packs will go for £75-£100

Side access zip, plus a rear tool zipper


Here's the adjustable yoke and Hydrapak bladder.


Here are some more details of the Unzen 10L


Subtle and stretchy



Reflective loop for blinky, plus stretch bungees for a jacket

For a more simple bag, there’s the Rokko. It’s 12L and won’t come with a bladder. It has lots of pockets, side mech and a media pocket

The Rokko. Hair, model's own...


There’s also the Tsukinist range of cycling backpacks (in 20 and 30L) that will feature laptop pockets(fluffy lined so you can put your tablet in there too and lots of breathable mesh for those smart town bike riders, plus pockets for just about everything else….

And finally, there’s the Osaka Messenger Bag range. In 25 and 35L for £80 and £90. Many pockets and a PAC-bag style easy-adjust and release buckle.

The smaller Osaka messenger bag
And the larger, 35L size

We’re looking forward to giving these a go when they come out in September time. They’ll be available from Madison dealers as always.


Singletrack Editor

Chipps wasn’t around for the dawn of mountain biking in the UK, but he likes to claim that he arrived in time for second breakfast (about the time he shows up for work, then…) starting in the bike trade in 1990 and becoming a full time mountain bike journalist at the start of 1994. Over the subsequent quarter century, he has seen mountain bike culture flourish and diversify and bike technology go from rigid steel frames to fully suspended carbon fibre (and sometimes back to rigid steel as well.)

His riding style is best described as ‘medium, wheels on the ground, trail riding’ though he’s been spotted doing everything from endurance downhill racing to 24 hour cross country racing. He favours mid-travel trail bikes and claims to be wheel-size, gear, brake and tyre agnostic. In fact, his garage spans most bicycle flavours, taking in steel hardtails, carbon trail bikes, even a mountain bike tandem, along with road, touring and gravel/cyclocross bikes.

While he’s happy to chat about bikes all day, his real interest is in the people and places that bikes can introduce you to and he talks as fondly about the trails he’s ridden and riders he’s met as the bikes that took him there.

Comments (7)

    Nice, but I hope they eventually come up with some more rugged and compartmentalised ones for less racy endeavours.

    Shimano wonderbra aka Unzen 🙂

    Indeed, lots of pert moobs on their way

    Boob friendly? Are you sure? PLEASE DO NOT TAKE OFFENSE AT THE FOLLOWING.

    Now maybe Shimano tried these out on some tame female racer types, who lets be honest are rarely overly endowed in the breasts dept due to low body weight. I have to so that that for ordinary women/girls who chests come in all shapes and sizes I have to cast doubt on the comfort of this new harness system. The section between breasts where the straps join seems very wide for all but the minimally endowed.

    Just saying like.

    Strap system looks similar in concept to what Kriega use for their motorcycle packs. It works very well on those.

    I did specifically ask about boobs/moobs and was assured that it works well. We’ll be doing our own testing when we get samples later in the year though…

    You can also check out jake from Harissons Bags. It’s 3 in 1 which is convertible from Backpack to duffel to briefcase.

    You can visit – to find the product

Leave a Reply