ATAIRSOFT PJ Type Tactical Multifunctional Fast Helmet with Visor Goggles Version Black + 1 x Multifunction Card NOT suitable for big head!!!!! For Hat Size: 59 or below  ( Internal width: 6.69" (17cm); Internal length: 8.66" (22cm) ). Weight: 550g ***Please check the image on the left side Not only for tactical activities, it also can be used for cycling. Include sliding goggles / Adjustable headband. With 1 x Multi-function Card. Side Rails fit a variety of accessories, Integrated NVG mount compatible with most GoPro NVG style mounts (NVG mount not included)