- Curved front panel shape
- Crown height approx. 7.5 cm
- May be made with Structured or Unstructured front panel
- Sloped front panel shape
- Crown height approx. 8 cm
- Structured front panel is most popular, but may be made as Unstructured
- Straight front panel shape
- Available in multiple crown heights (8 cm – 9.5 cm)
- Structured front panel is most popular, but may be made as Unstructured