Base Jump Helmet features an ABS plastic (for gaming purposes only), removable memory foam inner cushions with hook & loop attachment, two 4 position side rails for attaching accessories, front for adapting lights, cameras or night vision, adjustable chin strap with quick buckle. The helmet also includes 7 piece loop kit with adhesive backing for attaching patches or illuminators. One size fits, this tactical helmet is great for Airsoft, paintball and other outdoor activities