| D | Medium weight nylon used as a flexible reinforcement for throat, vamp linings and straps. Toe reinforcement in the lasting process without shadowing . |
| C/E | Strong nylon reinforcement for toe, throat, vamp linings and straps. |
| G | Lightweight flexible nylon reinforcement for throat, vamp linings and straps. Toe reinforcement in the lasting process without shadowing. |
| 66 | Medium weight nylon/cotton reinforcement for toe, throat, vamp linings, toplines and straps. |