Unused Scuba Diving Weight Vest Purchased for a drysuit. Never used. Of course, it's also OK for a wetsuit. The back is mesh, so it doesn't bulk up even if you wear it under a BCD or put it in a mesh bag. There doesn't seem to be a specific size. The bag is torn. Good underwater balance, and it relieves lower back pain. Scuba Diving Scuba Wetsuit