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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.

Wildcat 12L Backpack

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. 

(More Woodland color coming in July 2024. To be alerted, click on the blue Notify Me button. If you don't see the 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 183 reviews
Great backpack for daily use

I’m giving an 5 star to the Wildcat12. I m in Istanbul right now and bought the wildcat2 weeks ago for my GSA bike trips. I decided to see how it hold as a daily in city Cary on so my review is this. It works exactly well as as water reservoir and opens up to hold lager items to be carried. The multiple pockets allows me to securely keep things organized and when it rained no issues at all nothing got wet. It’s well build and I love the fact the at waist and shoulders straps can be removed and not always in the back pack
The only down fall is this if your not on the bike and using it as back pack the shoulder don’t have the capably to breath and your shoulder and shirts can get hot
My recommendation is to have some berthing vents on the shoulder straps.
Over all good build and it’s want you want dint look any more.

choi yong hoon

Wildcat 12L Backpack


Amazing bag! The quality exceeds expectations and fantastic for riding and traveling.

christopher greer
This bag is great, just like my reckless 80. The wildcat 12 gets the job done and then some.

As far a Mosco Moto is concerned , you all have been Awsome from my first purchase to my last one you all have been great. Thanks for great customer service to top quality products for me and my bikes. Thanks Chris G.

Amazing pack

The construction of the pack is undeniably durable. This one is worth every penny. The expandable beavertail makes it so you can fit everything you need. With 3 liter capacity, you're good on hydration until the next fuel stop and the insulated hose makes those hot pulls disappear. Combined with the chest rig, I have everything I need on long rides.