I have put this into both the formal and informal categories as I think it fits both!
The base is a vintage straw with a wired edge and it is finished with some fabulous vintage Petershams ribbon. The hardest part of making this hat was leaving it simple. The simplicity has made it a really wearable hat. It is roughly 47cm diameter which is large but the simple design is a great counterbalance to the scale.
The headfit is 21" but it is a boater style that perches on top so it would be wearable for a wide range of head sizes.
It is a one off hat and would arrive with you in one of my traditional hexagonal hat boxes.