material,after years of research,and have passed the EN-12568-S;CSA-Z195;ASTM-F2413;JIS-S international testing standards,Can withstand the impact of the 200 J or 15 KN force test and compression test,and up to present world highest level of European safety standards.Product weight is light.is about 50% of the ordinary steel cover,protect workers operation,at the same time reduce worker foot fatigue,wear comfortable.