XDEEP Sidemount Butt Plate
The XDEEP sidemount butt plate simply bolts onto the rear of your harness and voila you have extra space to clip off any of your dive accessories. This is more of a tool for those carrying lots of reels and stages for cave exploration but it can be a good solution for many different setups.
In stock (can be backordered)
The Honest Truth
I prefer using the XDEEP cargo pouch but this butt plate is a great way of extending space on your back for accessories and can make stage management a bit easier.