The continuous exposure to flames and heat from recurring hard training takes an especially hard toll on equipment. The eXXtreme preset utilizes special materials to reduce maintenance and cost of ownership of critical components that would otherwise require frequent replacement in such extreme applications. The harness is made from extra heavy duty and non-flammable aramid fibres. The air line is protected from fire and heat by insulating tunnels on the shoulder pads. With the rapid cylinder exchange coupling alphaCLICK, the cylinder is simply snapped onto the pressure reducer. Trainers and others who work in repeated high-heat and flame circumstances choose eXXtreme.