Christian Louboutin revealed the secret behind Taylor Swift’s “unslippable” Eras Tour shoes to InStyle‘s Sally Holmes in his latest exclusive. Louboutin, who has worked with Swift for more than a decade,

For the past 152 nights performing on the Eras Tour, Taylor Swift's outfits have each come with a pair of gleaming, twinkling, custom Christian Louboutin shoes—more than 250 pairs total, to be exact.