Airsoft SWAT Helmet Combat Fast Helmet Multicam - Low Price Version Suitable for training, search and rescue operations, climbing or other outdoor sports Head Circumference (mm):580mm-610mm, Head Size (US): up to 7 5/8 3/8 Lightweight, multi-impact, ventilated liner with repositionable impact pads and closed-cell comfort foam that is not affected by temperature, altitude, or moisture With a bullet-proof version and the carbon version of the same design, just relatively inexpensive polyethylene level plastic shell at the same time the head of night vision base directly integrated into the helmet shape on top of the material, obviating the need to purchase an additional night vision base capital, but also can be installed directly such as camera / headlights and other equipment in the head. Made by ABS plastic