Sonnet Bottom (2022)
| Black | Anodized aluminum |
| Grey | Anodized aluminum |
| Gold | Anodized aluminum |
| White | Electrophoresis-coated aluminum |
| Polycarbonate | CNC milled and sandblasted polycarbonate |
| Silver Mirror | Electroplated aluminum |
| Brass | Sandblasted and clear-coated brass |
| Copper | Sandblasted and clear-coated copper |
Note: A set of black feet is included with each bottom case.