Helmet SMITH Holt 2 matte black 2020/21 Specifications Bombshell Construction - the construction uses an injected, shaped ABS shell for maximum impact resistance. AirEvac 2 Ventilation - an internal ventilation system that removes warm air from the goggles and leads it through the ventilation holes on the top of the helmet. This guarantees the elimination of fogging of the goggles and optimal temperature control inside the helmet. Airflow Climate Control - strategically placed vents for easy