Looking like something the Master Chief would wear into battle, this is the Variant Ghost Carbon motorbike helmet by Icon
The helmet’s outer shell is made from carbon fibre and has a number of features to increase comfort, visibility and of course the most important, safety. The face shield has a coating which prevents condensation while an anti lift visor blocks out extra glare without blocking the ventilation. An aerodynamic spoiler reduces buffeting and lift when riding along and on the inside you have a washable liner cover that wicks away your sweat.
This carbon fibre skid lid will set you back around £400 with a number of cheaper versions also available.