BCDs Buoyancy Control Devices are one of the most important features in the comfort of your scuba dive underwater. The balance of the BCD, the durability of the BCD, and the location of your scuba accessories on the BCD are important components. Generally speaking there are recreational BCDs and technical BCDs, with quite a bit of crossover. There are back inflation BCDs and wrap-around BCDs, each with their own inherent advantages. Also available are more technically-oriented backplate systems which even the recreational scuba diver may appreciate. There are also different weight capacities, lift, and inflators available on each BCD. Too much general info? We would be glad to help you with your BCDs personalization and with any questions you may have. We'll get you in the right BCD based on your dive habits.