[9] In July 2014, Vogue's Suzy Menkes revealed Blazy after the presentation of Margiela's Artisanal collection he had designed, stating "you can't keep such a talent under wraps.
[12] In November 2014, Blazy joined Phoebe Philo's team as senior designer of Celine working on pre-collections.
[7][13] In August 2016, he was appointed design director of women's ready-to-wear of Calvin Klein under Raf Simons.
[1] Blazy brought an inclusive management style ("egalitarian" according to Anne Collier[8]), shrank the design team, and got the craftspeople involved in the creative process.
[16] In September 2023, the brand opened its flagship store in Paris on avenue Montaigne, the first designed by Blazy.