1)Steel toe steel midsole 2)OEM for free 3)Size:U.K. 3-13 / French 36-47 4)Upper and Sole material:PVC 5)Certificate:CE EN20 EN20345 S5 S4 SBP, 100% pure PVC,anti-oil,anti-alkali,anti-slip,erode resistance,tamp resistance,puncture resistanceIt can be used in the field of coal mine industry colliery and construsry PVC rain boots