From my stand point, the SOB is just a bad concept all the way around. Purposely placing a heavy metal (polymer) object at the base of the spine and then sitting against it to place pressure on the spine make absolutely no sense to me. I have one. I thought it was a great idea until I wore it while driving. It lasted about 20 miles. I stopped at a gun shop, picked up a nylon holster as a temp until I got back home and did some better research.
The Flashbang is a natural for women. Seems to me I remember back in the late 70's or early 80's there was something similar but the 'pouch' for the firearm was actually part of the bra. Made the cost and fitting a specialty issue.