One important consideration when choosing a buoyancy compensator (BC) is the style of inflation. Divers can choose between vest-style BCs and back-inflating BCs, both of which have advantages and disadvantages.
Vest-style buoyancy compensators are commonly used as rental gear, and most divers learn to dive using a vest-style BC. Generally, divers are already familiar with vest-style BCs, and will find them intuitive and easy to use. A vest-style BC floats a diver easily with his head out of the water, but may squeeze his chest uncomfortably when fully inflated.
Back-inflating buoyancy compensators are becoming common in recreational diving. Because they do not inflate around a diver's sides and chest, many divers find back-inflating BCs very comfortable. These BCs tend to put divers in the ideal horizontal swimming position. While very comfortable to use, back-inflating BCs may take a little time to learn to use properly.
Learn more about the differences between vest-style and back-inflating buoyancy compensators.
