Bell SE03 DSAF Fog Free Helmet Shield - Fits GP.3, GTX.3 HelmetsBell SE03 DSAF Replacement Shields are specifically designed for the Bell GTX3 Carbon, GTX3, GP3 Carbon, and GP3 helmets. The Double Screen Anti Fog (DSAF) Treatment features variable thickness that exceeds 5mm in the field of vision for excellent clarity and fog control. Bell recommends that you periodically change shields for better vision and safety. All shields come with adjustable tear off posts.