This is Vogue 8405, view A.
I was a bit worried that it might be hot while I was in London so, as I tend to fall over with sunstroke at the slightest provocation, I thought it would be a good idea to make a massive sunhat.
One side is the same purple linen as the Regency-ish dress. The other side is an offensively pink cotton that matches my hair. It’s fully reversible.
The pattern called for two layers of fabric and a layer of hair canvas. This still seemed a bit floppy for my liking, so I interfaced the pink layer. Still a bit floppy, so I quilted the entire brim in a spiral. Much better!