Gen Z Designers Made It Big on Depop. Now They’re Graduating.

Depop was founded in 2011 by Simon Beckerman, an entrepreneur, as a website where anybody could sell anything. (He is no longer involved with the app.) It soon built a reputation for selling used clothing, with influencers like the Italian fashion blogger Chiara Ferragni letting followers into their closets by starting Depop shops. By 2015, Mr. Semple said, Depop was benefiting from Gen Z coming online and was building its platform to be more interactive.