Inspired by making a hat for a baby I thought I would give it a go to make a hat for myself. I bought a Yousewgirl adult hats pattern from GJs. It's a great pattern as it has multiple sizes and multiple brim widths and the instructions are like having your own private sewing teacher at your elbow.
The first hat was a toile using a linen from Spotlight and cheap iron on interfacing.
The hat is firm in its structure and fits really well. The brim can be turned up too.
Feeling confident I tried making another one, this time only interfacing the brim. The hat is softer in structure and so I was able to attach the lining by machine rather than by hand. I could get away with not interfacing all parts of the hat as the outer fabric was a heavier weight cotton.