SPECIFICATIONS: MATERIAL: PLASTIC COLOR: CAMO HELMET SIZE: MEDIUM HEAD DIAMETER: 21.5 INCH FEATURES: - VISOR LOWERS AND TUCKS AWAY WHEN NOT IN USE - ADJUSTABLE HEAD STRAP - SIDE RAILS ALLOW FITMENT OF COMPATIBLE ACCESSORIES - VELCRO STICKERS ALLOW FITMENT OF SAFETY LIGHTS AND PATCHES - INTEGRATED HELMET SHROUD ALLOW FITMENT OF NVG AND COMPATIBLE CAMERA MOUNTS SERIES: CA-842A, CA-842B, CA-842C, CA-842D, CA-842G, CA-842N, CA-842T