Are You Ready to (Dress Like You) Rock?

How the fastest growing designer in men’s wear built a big business in no time flat by selling his customers on a dream: That they, too, could shred.

LOS ANGELES — On a slightly scuzzy strip of Sunset Boulevard, past the faded rock ’n’ roll memorabilia and oddly psychedelic trappings of a kitschy Thai restaurant (Quentin Tarantino’s favorite), out the back and down the stairs, is a one-room studio.“This is where I started, by myself,” said Mike Amiri. “One table, one chair.”Mr. Amiri is the founder and designer of Amiri, which is perhaps the most popular men’s luxury brand you’ve never heard of. Mr. Amiri doesn’t give many interviews, and ...