The Fenzy ABJL or Adjustable Buoyancy Life Jacket is the first commercially available buoyancy compensators for sport divers. Made by french diver Maurice Fenzy, it became available on the market in the year 1961.

The Fenzy ABJL or Adjustable Buoyancy Life Jacket is the first commercially available buoyancy compensators for sport divers. Made by french diver Maurice Fenzy, it became available on the market in the year 1961.