This sidemount BCD has an oval bladder and therefore can be used also as a backmount BCD by installing tank straps and switching the position of the inflator with the valve. The volume of the bladder is 16litres and the inflator is 400mm long. The harness with no shoulder buckle (DIR style). Four weight pockets (each can hold up to 2kgs) behind the back polstering plus two (of 3kgs each) on the cylinder strap are included in this set up. Diving with 3 cylinders is possible!