Scientific apparatus and instruments for use in underwater activities and swimming, measuring apparatus and instruments for use in underwater activities and swimming, signalling apparatus and instruments for use in underwater activities and swimming, checking apparatus and instruments for use in underwater activities and swimming, equipment for information and electronic processing for use in underwater activities and swimming, particularly underwater masks, for swimming and snorkeling and pertinent components, aerators, snorkels with and without valves, wet and dry suits for underwater and surface activities, subsuits, boots, gloves and neoprene accessories, buoyancy compensators, buoyancy compensator for snorkeling, signalling underwater and surface buoys, weight belts, weights and pertinent accessories, depth gauges, compass, pressure gauges, consoles for underwater and surface use, regulators for underwater use, cylinders, pressure cases and pertinent accessories.

Fishing knives; diving knives; harpoons for fishing; harpoons.

Underwater dive computers; wearable computers; air tanks for use in scuba diving; compressed air bailout units for diving; buoyancy compensator devices for divers; diving suits; gloves for divers; snorkels; swim masks; divers' masks; signalling buoys; scuba goggles; swim goggles; regulators for scuba diving; divers' boots for protection against accident or injury; life jackets; ring buoys for use in water rescue; cases for smartphones; covers for glasses; nose clips for divers and swimmers; weight belts for divers; diving weights.