The dress was a rewearing of one previously seen the year before at a pre-coronation luncheoan. It had been tweaked with the addition of a striped bow at the neckline and a striped belt instead of the original black one. The 'dome' hat was from Treacy's 2024 collection . Because the dress was so slightly altered, the hat was off the peg, and Kate's attendabce was not publcized until shortly before the event, it seems likely that her health situation made her appearance a relatively last minute decision and no outfit had been previously co-ordinated.