When setting up a Spiritus Chest Rig, you’ll need this and a Fat Strap. This strap provides the retention necessary to keep the Chassis close to your body. It attaches to the lower buckles on your Micro Fight or 34A Chest Rig and wraps around your lower back. 

This strap can also be used as a sling if you wish to carry your Micro Fight Chassis in a cross-body configuration as a "Go Bag." It can be adjusted between 20-91 cm (8”-36”). 

Note!: The Back Strap is a necessary component of the Spiritus Systems Micro Fight or 34A Chest Rig System when running as a stand-alone system. This item does not include the chassis, shoulder straps (Fat Straps), Magazine Inserts, or any other accessories.