Static-resistant fall arrest harness. It has a dorsal fall arrest ring and two fall arrest rings at the front (A/2). It also includes height and leg-adjustable straps. All the metal parts of this harness are made of aluminium, which ensures its durability over time. Under atmospheric conditions, an explosive atmosphere is any mixture of air and flammable substances in the form of gas, vapour or dust in which, after ignition, it spreads to the rest of the unburned mixture.