The duchess stepped out for a roundtable discussion with Harry wearing a style that we've not see on her before: a '60s-inspired chignon that's brings to mind iconic French actress Brigitte Bardot. The look had plenty of volume at the crown of her hair, and although there were no clear shots of the chignon from the back, it was likely clipped together using plenty of hair grips. To keep the style from feeling too formal, tendrils were left loose at the front with a slight wave added.