Size: S = 55-56 cm - The 6 ventilation inlets and 4 exhaust outlets of the SHOEI NXR2 are connected via a branched ventilation system within the helmet shell and noticeably reduce the interior temperature and humidity in the helmet. They always provide sufficient fresh air supply to the driver or rider without increasing the noise pollution. The result is a pleasant helmet interior climate for a concentrated and fatigue-free ride, both for sporty driving on the racetrack as well as for motorcycle trips to warm countries., Accessories, For the SHOEI NXR2 visors are available in a variety of different tints and mirroring, which can be used in compliance with the ECE homologation guidelines. The helmet is equipped as standard with a clear visor of type CWR-F2. In all visors of this type can be attached anti-fog PINLOCK EVO lenses, one of which is included with the helmet., In the range of accessories from SHOEI are available cheek pads and head pads in different sizes and thicknesses to replace the original pads or to customize the helmet.