Rothco Base Jump helmet has an ABS plastic (only gaming purposes), removable foam inner pads with hook and loop fastening, two side rails for attachment of accessories. 4 mounts up to adapt lights, cameras or night vision, adjustable chin strap with quick release buckle. 4st adhesive velcro patches supplied to attach patches mm. One size fits most and are available in OD and Coyote. This helmet is good for airsoft, paintball and other outdoor activities