Patrick Grant, Katharine Hamnett, Bella Freud and Vivienne Westwood among signatories of campaign letter.
Elle Macpherson, Daisy Lowe celebrate Sophia Webster’s win in London.
Guests include John Kerry, Christopher Kane, Erdem Moralioglu and Poppy Delevingne.
The show will open February 2016.
Actors, aristocracy and models celebrated the brand's 10 years as official Wimbledon outfitter.