9150 523ULT AR FR Ultralight Hood 40 Cal cm2 hardknock resolve Two AAA batteries are included good helmet Two AAA batteries are included Click here to download the instructions for inserting the earplug Arc Rating: ATPV 40 cal cm2 (PPE 4) Hybrid fabric technology Incorporates UV and IR absorbing ARC shield lens providing protection up to 40 cal cm² replaceable Green tint window is coated with a permanent anti fog inner surface Lens is extended 3" from face to accommodate respiratory protection and help minimize lens fogging Supplied with dialectric safety helmet and hard hat adapter High tensile strength and tear resistance 37% lighter than traditional 40cal garments 2X more breathable Lens meets ANSI Z87