headshot of Peter Pernot-Day in front of white background
Peter Pernot-Day, Shein's global head of strategy and corporate affairs.
  • Shein has become a major power player in fast fashion thanks, in part, to its technology.
  • But the way Shein uses data and determines demand has been a point of contention.
  • Shein exec Peter Pernot-Day explained how the company's on-demand model works.

Shein has become a major power player in fast fashion, and a large part of its success comes from the technology it uses to identify trends and capitalize on demand.

But how does it use this tech?