100 aircraft mips dh helmet primerthe aircraft mips dh helmet from 100 is precision engineered with a carbonkevlar composite shell providing an ultra lightweight design enhanced venting channels manage airflow to create one of the most ventilated dh helmets on the market features ultra light design featuring aerospace carbonkevlar composite shellactive cooling system maximises airflow offering more ventilation than any other helmetwashable antibacterial comfort liner cheek pads and chi