Wosport WST Flat Pack Backpack — OD

The WST Flat Pack is a compact tactical backpack designed for those who run modular kit and don't want a fixed volume on their back. Folded down it measures 37x34x4 cm; fully expanded it reaches nearly 9.6 litres thanks to a wedge system that lets you go from an almost flat profile to a usable volume without swapping or adding any components.

The main compartment fits a 1-litre hydration bladder and features a dry zip closure that keeps the contents protected without adding dead weight. The front admin pocket is sized for frequently accessed items — batteries, chem lights, energy gels — kept separate from the main compartment and reachable without opening the whole pack. The system is built in Cordura, which provides a practical balance between abrasion resistance and low weight for extended field use.

The Flat Pack integrates natively with chest rigs, plate carriers and assault vests fitted with MOLLE/PALs on the back panel, becoming an extension of the kit you're already wearing rather than a separate item. The additional chest strap distributes the load and reduces movement during running or prolonged carry. It's worth noting, however, that the pack — with its zip opening and expandable profile — prioritises modularity over structural rigidity: anyone looking for a fixed, rigid volume will find a hard-sided container better suited to their needs.

Key points

• The expandable profile goes from nearly flat to 9.6 litres with a single wedge system, removing the need for multiple packs for different load sizes.
• The back panel with PALs/MOLLE attachment points mounts directly to plate carriers and assault vests, with no extra straps showing.
• The admin pocket, separate from the main compartment, lets you access frequently used items without opening the whole pack.
• The main compartment is compatible with 1-litre hydration bladders, useful on extended outings with no resupply point.
• The additional chest strap stabilises the load on the move, reducing lateral shift during active use.
• Cordura construction for a practical balance between abrasion resistance and low weight.

In the box

• WST Flat Pack backpack