It's an old US Divers "Calypso" BC. There are a few D rings on the front, and one pouch, on the right side. There are however lots and lots of velcro loops.....take a piece of fabric, find the exact middle (if you folded it, it'd be a V, about an inch and half on each side of the bend), and sew that to the BC. Put velcro on each side, and there you have whtever my BC has. There's like, one on each shoulder, one on each side.....what the heck would you use those for??