• Flash-Pro™ Arc Protection Kit includes Elvex proprietary designed molded ARC shield of polycarbonate material with special absorbers of .078″ thickness for maximum impact and thermal protection. Visible Light Transmission (VLT) of 43% to 55% (49% for FP-AG44), provides high mass impact protection and 99.9% UV protection. It’s exclusive anti-fog coating prevents fogging and insuring visibility.