CE EN ISO 20345:2011, S3, SRC - ESD-compliant according to DIN EN 61340 - certified orthopedic insole available in accordance with DGUV 112-191 - Smooth leather - Steel toe cap - Cushioned PU midsole - Metal-free puncture protection - Slip-resistant PU outsole - Replaceable acc Wave insole - Sanitized treated - Size: 51 - Color: black