From Sew Curvy:
A modern underbust corset pattern by Sew Curvy. This pattern is the pattern we use in our classes. It has a modern hourglass shape, with a dramatic nip at the waist and panels each side.
The pre-cut bone sizes required to make the corset are: 21cm x 4 flat, 21cm x 4 spiral, 23cm x 4 spiral, 24cm x 2 spiral. Busk is 10" standard.