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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 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 Wildcats in Woodland are coming in early August. To be alerted, click on the blue Notify Me button. If you don't see the button, click on your 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 236 reviews
Pablo Zamora
Dissapointed about the nylon optic of the product

Before puchased the wildcat 12 I had ordered the Nomax tank bag that has me completely satisfied with regard to the material used and the external quality impression. The wildcat doesn’t look as a valuable bag but rather like a promotional gift bag for 15 $. Sorry for giving you my sincere opinion.

Jan Stahl
Perfectly organized and highest quality

Like the Wildcat Backpack very much. It's so versatile especially with the chest rig attached.

The colors are very bright and look perfect.

Quality is 1*.

Martin Hollein


Bastiaan Woolderink

Proud owner of the Reckless 80 V4.0, and 2 Wildcat 12L atm. The Wildcats are great, Awesome quality, does what it has to do! Great stuff, great service, great people!!💪💪

I will go for more Mosko gear!

Ari Junnikkala

Great product. Practical and good quality.