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We designed the Wildcat to be an ultra-comfortable and adaptable backpack featuring a 3 Liter / 100oz Hydrapak® water reservoir with adjustable shoulder straps for a fine-tuned fit.

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Wildcat 12L Backpack

Wildcat 12L Backpack

Onyx/Orange - Preorder
High Desert - Preorder
Chest Rig add-on

The Wildcat Backpacks were designed to be ultra-comfortable and adaptable backpacks featuring 3 Liter / 100oz Hydrapak® water reservoirs with insulated hydration hoses. The Wildcat Tech adjustable shoulder straps with 5-position options fine-tune the fit for a custom-tailored feel for different-sized riders and gear.

Worn over a jersey, external armor, or a large ADV jacket, the ergonomics of the Wildcat Packs will evenly distribute the weight of the 3L reservoir, tools, and your essentials while avoiding pressure points and sore shoulders. The molded back panel and adjustable / removable sternum strap create maximum comfort and support for riding rough terrain in the backcountry. 

(Onyx/Orange and High Desert colors are available for preorder with expected delivery in May 2024. If you’re ordering in-stock and preorder items and need your in-stock ones right away, please place two separate orders or all items will ship with the preorder.)

(More Woodland color coming in July 2024. To be alerted, click on the blue Notify Me button. If you don't see button, click on your size/color and refresh your browser.)


Stash your goggles and spare lens in the fleece-lined pocket, throw your wrenches and pliers in the front tool organizer, and clip your InReach Mini to the shoulder strap for fast on-body access to be ready for long-distance, multi-day trips. 

Compared to the smaller 8L Wildcat, the 12L version has 33% more internal volume for storing extra layers, tools, and battery packs. Still light and compact but with the ability to carry additional gear comfortably.

The Wildcat 12L features an expandable beavertail that allows you to quickly stash another 6L of external volume – enough room for two fuel bottles to fit side by side, a bike pump, trail loppers, or safely secure your rain jacket. A MOLLE panel on the face provides further mounting options for first aid kits and other accessories.

The optional Wildcat Chest Rig pairs with the Wildcat 8L and 12L Backpacks. The Chest Rig is equipped with two front pockets, one designed to provide quick access and secure transportation for a satellite communicator, like the Garmin inReach and InReach Mini. Opening the main storage pocket, you’ll find a removable Velcro panel with elastic webbing to secure small items such as a pocket knife or charging cables, plus room to store your phone, wallet, snacks, or other quick-access items without having to take off your pack. The Chest Rig back panel is also equipped with MOLLE for attaching it to other Mosko bags/luggage with MOLLE panels.

Please note: the Chest Rig add-on is only available in Black. All three pack colors share the Black Chest Rig.

  • 3L / 100oz Hydrapak® reservoir with insulated hose
  • Expandable beavertail for quick stash and approx. 6L of added volume
  • Molle attachment panel for additional accessory carry
  • Wildcat Tech adjustable shoulder straps with 5-setting options
  • Removable waist belt
  • Fleece-lined goggle pocket with divider
  • Front tool organizer pocket with clear window
  • InReach Mini retainment system on shoulder strap
  • Adjustable/removable sternum strap
  • Molded back panel for comfort and support
  • Two multi-purpose tool loops with Velcro closure
  • ID card inserts window inside beavertail
  • Top grab/hanging handle
  • Optional Chest Rig compatible
  • Wildcat 12L Backpack
  • 3L / 100oz Hydrapak® reservoir with insulated hose
  • The optional Chest Rig add-on is only available in Black.


  • 3L / 100oz Hydrapak® reservoir with insulated hose.
  • Expandable beavertail for quick stash and approx. 6L of added volume.
  • Molle attachment panel for additional accessory carry.
  • Wildcat Tech adjustable shoulder straps with 5-setting options.
  • Removable waist belt.
  • Fleece-lined goggle pocket with divider.
  • Front tool organizer pocket with clear window.
  • InReach Mini retainment system on shoulder strap.
  • Adjustable/removable sternum strap.
  • Molded back panel for comfort and support.
  • Two multi-purpose tool loop with Velcro closure.
  • ID card insert window inside beavertail.
  • Top grab/hanging handle.
  • Chest Rig compatible (sold separately).


  • Capacity: 12L
  • Dimensions: 18.25 in x 9.5 in x 6 in / 46 cm x 24 cm x 15 cm
  • Dry Weight: 3.2 lbs / 1.45 kg
  • Optional Chest Rig Dims: 9 in x 7.5 in x 1 in / 23 cm x 19 cm x 2.5 cm
  • Optional Chest Rig Weight: 0.7 lbs / 0.3 kg
Construction & Materials
  • Main Body Materials: 630D High-Density 100% Recycled Nylon with Water-Repellent Finish. (Control Union Certified in the Netherlands to Global Recycling Standards with Traceable 100% Post-Industrial Recycled Nylon.)
  • MOLLE Panel: Hypalon
  • Lining Material: 210D Nylon
Product Care

Visit our Help Center for Product Care info.


We never cut corners during development or manufacturing, so we stand behind our products. If one fails due to a problem with materials or workmanship, we’ll make it right. All Mosko Moto products include:

Limited Lifetime Warranty

'Limited' means it does not cover:

  • wear & tear
  • neglect/misuse/abuse
  • aesthetics
  • sun degradation
  • modification and/or use for a purpose other than what the item was designed for

Crash Care Program

Pair With

Highly Recommended Accessory Products

Customer Reviews

Based on 106 reviews
Juan Leite
first impression

My first impression, which I evaluated and found to be very good, was the quality of the product and its finish. I bought the 12-liter backpack, and regarding size and functionality, it seemed excellent to me, prioritizing the part of carrying water and not loading too much weight on the back, carrying only what is necessary (documents,wallet, etc) or things that can be uses in a 5-min stop (snacks).

Carlos Escudero
Wildcat 12L Backpack, The Best!

Excellent purchase, unbeatable quality materials, its design is incredibly practical. Ready for everything, and very comfortable. Thank you Mosko from Chile 🇨🇱 !

Perfect Bladder-Pack

Great design. Just the right size and weight. The adjustable straps distribute the weight evenly and keep the pack in one spot. Plenty of room for snacks, a walkie, first aid kit and a hat and gloves.

Lars Vestergaard
Excellent back pack

Used it while picking up dog food on my Africa Twin Of all things. Love the ease of accessibility and function. Will also use it for day time hiking across Europe. Will definitely enjoy to use it fully as it is so easy to put on over my bike jacket without getting stuck on my sleeve when putting it on. Chest rig is very handy to pull my wallet from and cell phone. Overall really enjoy using it. Thanks

Koen Collins

LOVE THEIR PRODUCTS AND THEY HAVE THE BEST WARRANTY PROCESS. They are extremely helpful and will go out of their way to provide the best care for their customers. They sell only the highest quality gear. And best of all they’re all riders and local. 10/10 would recommend!!!