Backcountry 40L Duffle/Pack

This moto-duffle does it all: it's a duffle, a backpack, and a quick-stash spot during the day. It's a way to keep your wet jacket separate from your dry sleeping bag. It serves as a clean food prep surface next to the campfire and a convenient tool tray for roadside field repairs. The Backcountry Duffle is available in two sizes, a 40L version and a 30L version.

People have been strapping all kinds of miscellaneous duffles to the back of their bikes since motorcycles were invented. Do a quick google search for ‘waterproof motorcycle duffle’ and you’ll see what I mean. The same basic welded seam waterproof roll-top duffle is presented a hundred times over, with different logos. It turns out that when you start from scratch and ask the question ‘how should an ADV duffle function’ you end up with something that looks and functions a lot different.


With the Backcountry Duffle we wanted to design a motorcycle bag from the ground up, instead of starting with a kayak/rafting drybag. Two things jumped out at us right away. First, we hated having to unpack the entire back of the bike just to put something in or take it out. If you picture a traditional roll-top duffle, the straps that connect it to the bike are going over the opening, which means that you have to undo the straps to get inside. Plus, because the bag is sitting on the back of the bike, by the time you unroll the opening it is too high to see inside. So you take it off the bike and set it on the ground. If you’re getting in and out of the bag several times a day this starts to get pretty annoying.


Second, traditional single-layer drybag duffles have a very limited lifespan. There are so many things that can cause them to fail. Campfire sparks, abrasion from a crash, abrasion from the rack it sits on, heat from the exhaust, cracks from sun damage, etc. As soon as anything happens to the bag, it’s not waterproof anymore. And if that happens in the middle of a trip it sucks.


We came up with the idea of a bag that’s actually two bags – an inner waterproof bag and an outer abrasion-proof bag – to solve that problem. Then we made it a double-ended roll top instead of a top-loader, so you can get things in and out without unstrapping it from the bike. Then we added a beavertail on top of that, so if you need to stash your jacket, or wet/dirty items that you don’t want inside the drybag, these things can be stored externally without getting inside the duffle at all.


Then we added backpack straps. Riding 50+ miles on dirt is no big deal on an adventure bike, but if you break down and find yourself hiking out, it’s a long friggin way man. Having a comfortable backpack is key. That was the original idea behind the backpack straps, but it turns out it’s also super handy for getting everything into (or up to) a hotel room in a single trip. When you’re traveling internationally, sometimes it’s not ok to leave half your stuff on the bike while you take the other half inside. With the BC 30/40, put the duffle on your back, grab a pannier in each hand, and you’re mobile. Plus the straps make it a great airline carry-on for fly-in trips or general travel.


Inside the beavertails there's a mesh pocket for wet/dry items (like a toothbrush), a document pocket which works great for maps, or for your bike documents and passport. The document pocket is especially helpful at border crossings where you have to stop at multiple customs offices on both sides of the border. Remove the document pocket, take it inside the customs office with you, then when you're done put it back inside the beavertail and ride over to the next office. That way you can collect all the country specific paperwork in a specific spot. Also under the beavertail there's a special tent pole pocket so you can split your tent into its various components, making it so much easier to pack. The tent pole pocket also works great for a camp chair, fuel bottles, a fishing pole, etc.


There are two things that take some getting used to on this duffle. First, the materials are really thick, which means that rolling/unrolling the roll-top feels a little cumbersome at first if you’re used to thinner kayak drybags or stuff sacks. The materials loosen up with time, have no fear. Second, compared to a top-loader, the double ended roll-top has a narrower throat. So when you’re in your tent, or in your hotel room, sorting through the stuff inside is not as easy as it would be with a top-loader. We make top-loaders too, check out our Scout 25/60 duffle if that’s the way you’re leaning. 


The Backcountry Duffle also includes a separate 20L Drysak bag, which can be used to keep dirty/wet items (like shoes or towels) separate from your other belongings. 

Want to protect your gear from thieves? Add our Steelcore Locking Straps. The Backcountry Duffle requires one 6' strap. Mounting instructions can be found in this video.

Connection Strap Note: For pavement and graded road riding, virtually any kind of connection strap will work to attach this duffle to the bike. For rough, ungraded terrain or for long-distance, multi-month trips, we highly recommend the Backcountry Cinch Strap, which was designed specifically for this bag and this kind of travel. Whatever strap you choose, if you will be riding offroad, please avoid bungy cords, stretchable elastic straps, or straps with plastic side-release buckles. Even a simple cam buckle strap (like this one by DaKine) is better than elastic.

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Easy on/off mounting
Stash Spots
100% Waterproof
Molle Expandability

Features

  • 1. MOLLE expandability
  • 2. 2 bag system – Tough bag outside. Dry bag inside.
  • 3. Beavertail stash-spot for extra storage and expansion
  • 4. Double ended roll top – access from BOTH sides
  • 5. Deployable backpack straps
  • 6. Tent pole pocket – keep those tent poles on quick draw!
  • 7. Removable map/document pocket
  • 8. Mesh pockets for keeping small items handy
Product Specs
  • 40 Liter capacity
  • Length: 21-26” main body – can be extended significantly with roll tops!)
  • Width: 16"
  • Height: 10" (can be extended with beavertail)
  • Weight: Approx 6 lbs
  • Construction + Materials
  • Outer Shell Materials: Ballistic Nylon
  • Inner Dry Bag Materials: 100%
  • waterproof 22 oz PVC with welded seam construction
  • D Rings: Aluminum rather than plastic to withstand abuse
  • Top Panel: 22oz PVC for easy washing, extra water resistance, and abrasion protection
  • Beavertail: Ballistic Nylon – providing extreme abrasion resistance
  • Tent Pole Pocket: 22oz PVC
  • Kit Includes
  • Backcountry 40L Duffle
  • 20L Drysak
  • HIGHLY RECOMMENDED 
ACCESSORY PRODUCTS:
    4L MOLLE, NOMAD TANK BAG, STEELCORE LOCKING STRAPS

    We needed this.

    Product Creation at Mosko is an effort born of necessity. Everyone on our team rides – and time on the trail translates to an innovative, always improving product line. Crafting gear that will outperform in even the most harsh riding conditions means we make no compromise, ever.

    “It doesn't get any better than these duffle bags. High quality, great features, and will last a lifetime. I have previously had most of the other brands of duffles and different tail bags and would never go back!!! Would buy again!”

    – Arthur, 2018

    In The Wild

    Customer Reviews

    Based on 283 reviews
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    S
    S.C.
    Moskow bags

    I have a tank bag and a 40L bag. Both are awesome. The tank bag has multiple sections for smaller objects, wallet, phone, snacks, etc, and water pouch! It removes easily, and fits well. The 40L carries my tent, poles, camp chair, and all my clothes. Also easily removable and fits my bike, a Triumph Tiger, perfectly. I have used other bags...mosko bags are far superior. These guys know what they are doing.

    R
    R.W.
    All Bags

    Rolling out Friday to Utah for a week with 7 buddies and I'm loaded with your 30L Backcountry Duffle, a set of Backcountry 35 Panniers, an add on Molle bag and a fatty tool roll. All loaded, everything fits, and if it works as well as it looks, which is amazing, I'll be sure to let you know!

    J
    J.B.
    Love my Mosko’s

    I am currently on the road touring the South Eastern US. The plan is to hit 6 states in 10 days. I bought the large backcountry duffel and 30 L bags. The weather has been less than ideal. I have ridden for more than 36 hours in medium to heavy rain and this gear is holding up to the weather and has kept everything safe and sound. Since I am also working I have my laptop and other critical gear with me and have no issues. These Moskos are bomb proof! the convenience of ease taking them on and off or quickly accessing them is awesome. Whether tent camping or checking into my hotel this system is awesome. I have zero regrets purchasing them and the time it took to arrive to my door wasn’t long. These are by far my most important component for piece of mind traveling. Great work Mosko Team!!!

    S
    S.P.
    Backcountry 40L Duffle/pack

    This dry bag is the best thing I put on my bike. Built great, the two side opening are perfect for getting to what you want without dumping out everything. The solid back makes mounting on my tail rack easy and secure if I go two up. Looking at the tank bag next!

    I
    I.S.

    Backcountry 40L Duffle/Pack

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