Is every pair of jeans like no other? According to the testimony of FBI forensic analysts, the patterns seen on denim are reliably unique and can be used to identify a suspect in surveillance footage.

This is an edition of the weekly newsletter Pattern Grading, GQ global style director Noah Johnson’s no-holds-barred view on contemporary menswear, the culture of fashion, and how to get dressed now.

Some of the best jeans in the world aren’t made in standard factories, but instead, are made by a single craftsman from start to finish. Called single-producer jeans, they come with a hefty price tag, ...