Buoyancy compensator jacket for scuba divers with improved weight pockets

A buoyancy compensator jacket comprising a back portion and two side portions extending form respective opposite sides of said back portion, said side portions being suitable for wrapping the diver's trunk and connecting to each other on his chest, each of said side portions further comprising a main pocket, a weight pocket arranged on the outside of said main pocket and defining a top opening for housing a weight-containing bag, and closure means for said top opening of said weight pocket, said jacket further comprising a compartment formed in said main pocket for concealing said closure means of said top opening, and engagement means placed on the outside of said weight pocket, complementary engagement means being provided on said closure means and on said weight bag, whereby said engagement means of said weight pocket are engageable either with complementary engagement means of said closure means, or with complementary engagement means associated with said weight bag in order to keep the latter in position within said weight pocket.