Airoh Aviator 2.1 Rockstar Off-Road Helmet (Black, X-Large) Homologations: ECE 22.05, DOT FMVSS No. 227 Weight of 1150 grams (2.5 pounds); Size: X-Small (53-54 cm) Carbon and Kevlar composite shell material Removable/washable/replaceable liner and cheek pads with Airoh Emergency Fast Remove system Included Accessories - Upper vent closing covers, Extend peak (long), Screws kit, badge lanyard with Airoh Key for screws, mount for GoPro