ZENITH X ensures optimum protection against top, rear and front impacts, lateral deformation, and object penetration. Its unventilated shell offers protection against electric shocks. A patented inner padding fastening system increases durability and makes it easier to replace and remove the padding. The new double-diameter thumb wheel allows ZENITH to be adjusted to fit all head sizes. The helmet has attachment clips for head lamps (removable), dedicated labeling fields, and can also be fitted with a wide range of accessory options. The 30 mm universal slot is used to mount the hearing protectors.