RF2 This is the modular helmet from the Grex line. This model has been renewed compared with previous versions and meets the needs of consumers who demand a practical and versatile product. An important technical feature is the extremely useful inner sun visor which means it can be used in any situation, in long trips out of town and in brief runs across town. The visor is also ready for the Fog Resistant system which improves resistance to fogging. The shell, featuring an attractive modern design, is fitted with a chin guard with an opening mechanism known as Dual Control Lift. This special system, practical and easyto operate, is positioned in the middle and allows you to open the chin guard with one hand only. Furthermore, it prevents accidental closure thanks to the lock of the opening key. The front ventilation system and the air intakes on the chin guard permit adequate air recycling, preventing the formation of condensate and consequent fogging of the visor. The retention system is of the micrometric regulation type and the removable and washable internal padding is made of Air Comfort fabric that ensures correct breathability.