Spiritus Systems Micro Fight Chassis Mk4 Arcteryx LEAF or standing post in the

or standing post in the dead of winter

it combines lightweight warmth with a minimal profile for unrestricted movement and maximum adaptability

Built for your mission

The ETA keeps your CAT TQ high-speed and low-drag- exactly where you need it in high-stakes moments

Upper: Synthetic / Textile

Spiritus Systems Micro Fight Chassis Mk4 Arcteryx LEAF or standing post in theMicro Fight Chassis Mk4 Lightweight. Modular. Mission Ready. The Spiritus Systems Micro Fight Chassis Mk4 is the foundation for building a lightweight, modular chest rig or placard that adapts to any mission. This versatile platform integrates seamlessly with the entire Spiritus accessory suite, making it ideal for a range of loadouts from low vis to full kit. Inside both compartments, soft loop Velcro allows you to position mission essential inserts