Dual Density Nitrile Rubber/PU Sole construction | Removable Rebound Foam insock | SRC slip resistant and Anti-static sole | Fuel and Oil Resistant, Non-marking sole | Flex zone technology | 200J impact resistant composite toe cap and TPU toe cover | Outsole heat resistant to 300 degrees Celsius | YKK side zip | Individually boxed, carton of 5 | Meets AS 2210.3:2019; Certified by BSI BMP No 622279