spaceman, it cost me nothing, my boss said , yeah go ahead xray the helmet!! You could see the inside material, any holes or cracks will show up black, cracks like spider webs, or black lines, holes, will be black, like the vent holes , they show up black. But do the helmet companies look for more subtle impact impressions, that I don't know. I just know from xray experience, what a crack or hole would look like.