The FA said it had updated its policy in light of last month's Supreme Court ruling that the words 'woman' and 'sex' in the Equality Act refer to a biological woman and biological sex.
Roxy Media, the media company set up by Holly Willoughby, 44, and her husband Dan Baldwin, 50, was issued with a winding-up order this year, according to court filings.
The outfit boasted a turquoise and white floral pattern and featured a buttoned long-sleeve blouse, mini shorts and a tan belt. She posted the photo to Instagram on Wednesday.
Amid the show's end, the presenter, 44, was been left without an ITV primetime show for the first time in 21 years after turning down a major job with the broadcaster.
Holly Willoughby is refusing to take part in a Channel 5 documentary about the horrifying kidnap and murder plot by obsessed security guard Gavin Plumb.