OneTigris AirFrame Style Helmet Airsoft Paintball Protective ABS Lightweight with NVG Mount Unique 2 Piece shell design with multi layer padding, providing maximum ventilation and comfort Suitable for airsoft training, search and rescue operations, climbing or other outdoor sports. Or for cosplay use Rail system attached, and molded-in front mount to attach lights, cameras and NVG brackets Made by high quality ABS plastic, provide excellent head protection. No ballistic function Adjustable chin strap. Head circumference 56-61cm22-24 inch