Trevor founded AllSaints in 1994 after seven years as head of menswear at Reiss; Bolongaro, an RCA Fashion Design MA graduate, joined him there in 1996. After selling their AllSaints shares, the couple started Bolongaro Trevor and built a celebrity following — Daisy Lowe, Gwen Stefani, Liam Gallagher and The Libertines among them — showing at London Fashion Week in 2010.
The brand grew to a string of London stores plus Birmingham, Leeds and Nottingham, and was stocked at Selfridges. Trevor and Bolongaro sold the business to the Jalil family in stages, completing the sale in 2016, and are no longer involved with the brand.