This latest version of the Stilo ST5 GT Zero helmet offers the pinnacle of closed cockpit GT / touring car racing helmets. This 'Zero' version is constructed from high tensile autoclaved carbon fibre for exceptional strength and ultra-light weight. These properties allow this helmet to surpass the latest FIA 8860-2018 safety standard with unparalleled levels of impact and puncture resistance. Integrated Plugs: No more hanging cables and possible breakages. The whole electronics package is integrated into the helmet as well as the plug connecting to the radio. For circuit use, wiring connections are available to connect to the most common car radio systems. Adjustable Microphone: Magnetic-dynamic noise-cancelling microphone. Supplied with spacers to move the microphone position closer to the drivers mouth. Earmuffs: Certified for track use as they offer excellent isolation from external noises. They are removable and not fitted with speakers, which are not permitted on circuit: communic