Designed to fit and protect your weight-integrated BC, bags are made using a soft and flexible Nylon mesh and are filled with pearl size lead spheres. They have a smaller surface area than the regular lead shot which minimize their oxidation process. Another convenient advantage is that these bigger spheres hold less water helping bags to dry faster. For easy identification, each bag is color coded and has a tag indicating their weight. These soft weight bags are ideal also for diving belts with pockets.