Newly re-designed Vertex Vent helmet featuring a six-point mesh liner that conforms to the shape of the head for improved comfort. Shock absorption is achieved through deformation of the outer shell. Ventilation holes with sliding shutters allow the ventilation to be adjusted as needed from the outside. Side slots for mounting hearing protection and inserts for accepting a VIZIR face shield as well as a slot for mounting a PIXA headlamp.  ANSI Z89