1. Upload a front-facing photo:

1. Answer questions about head size:

https://ericjavits.com/blogs/news/hat-sizing-guide

*My head is 57cm, therefore I have a medium head size.

1. Select your head shape using the reference photo:

https://designbundles.net/ssstocker/811729-female-face-shapes

*I have an oval head shape for reference.

1. Select your jaw shape:

https://architeqtsalon.com/face-shapes/

*I have an oval jaw.

Upload a side-facing photo: