Footwear Codes
| E | Heel Energy Absorbtion 20 Joule |
| HRO | Resistant to High Heat 300°C |
| P | Penetration Resistant 1100 Newtons |
| SB | Toe protection to 200 Joules Impact |
| S1 | Leather Upper. Antistatic and Energy Absorbing Heel |
| S2 | As S1 plus Water-Resistant Upper |
| S3 | As S2 plus Penetration-Resistant Sole to 1100 Newtons |
| W/P | Waterproof |
| WRU | Water-Penetration-Resistant Uppers |