The helmet shell is molded using imported aramid woven fabric or high-strength polyethylene PEUD fabric, and the interior uses HEAD-LOC suspension technology. The interior is equipped with lightweight, impact resistant, and ventilated EPP cushions, as well as OCC-DIAL adjustable headwear. Simply twist the knob to tighten the headroom. The headwear design on both sides allows for placement of COMTAC/SORDIN and other pickup and noise reduction communication headphones inside the helmet, which can connect devices such as headlights, cameras, goggles, communication devices, and HALO masks.