"She is so proportionate, and yes, a size 13 shoe, difficult to find," Diehl admitted. "But I think maybe we'll get lucky now and the Paul Andrew and Tabitha Simmons of the world and Manolo Blahnik will suddenly start making size 13s -- you never know."
For now, it looks like she has enough pairs to hold her over!
ET recently spoke with her stylist to find out how Caitlyn picked the perfect Versace gown for the 2015 ESPYs. Watch below.: