The Load Bearing Vest (LBV) Expander Kit is designed to augment the 34A Split Rig Chest Rig Chassis by adding more storage real estate to the system.
- The LBV comes with a roll top butt pack, padded X harness system, and a sternum strap.
- It replaces the Back Strap and Fat Straps from a standard 34A Chest Rig setup to create a fully functional platform for load carriage.
- The LBV Expander Kit can be easily attached or detached for quick chest rig configuration.
- By keeping both an Expander Kit, as well as Fat Straps and Back straps on hand, the operator can quickly transition from a front-only system that is easy to use in vehicles, to a full-featured Load Bearing Vest that can store extra essential kit for sustainment operations and longer patrols.
- The LBV Expander kit is also backed with a MOLLE attachment system.
- The harness and side straps are removable so that the Butt Pack can be used as a standalone module on other platforms. When not in use, the side buckle straps can be stowed behind the MOLLE using the integrated vertical slit openings.
- The main compartment of the roll top pouch can be expanded to accommodate large items and is constructed with a DWR finish. However, it is not fully waterproof. If you are looking for a fully waterproof solution, Spiritus recommends lining the pack with a dry bag.
- The pouch also features a zippered front pocket with tie down loops for sensitive items.

If you are ordering for a MIL/LEO unit, please contact sales@spiritussystems.com