Thank you Todd for the link again. I was looking for it last week and couldn't find it.
Do you think it would be successful made in light garment weight leather?

A friend wants a beret style cap in leather and your pattern came to mind due to the shaping in the pattern pieces.
Leather, industrial sewing machine, thread and other bits & bobs are all in our combined stashes so no issue there.
I'm just wary of cutting into the leather and can't think of a suitable fabric to use as a muslin.
Thanks