Casdon
Andy Burnham has always dressed like that watermeadow, black or white t shirts, and dark shirts are his thing. When he wears a suit it’s invariably black too. Why would he change what he wears?
Burham hasn’t always dressed as he currently does. When he was an MP he wore a suit, shirt & tie, as is convention (many images available).
When he left Westminster to become Mayor of Manchester, 10 years ago, he began to change his attire - deliberately and consciously - to ‘suit’ his new audience.
This ‘metamorphosis’ is analysed in a Guardian article:
“Andrew Groves, a professor of fashion design and director of the Westminster Menswear Archive, says Burnham’s “all-black workwear look is as calculated as any Westminster suit, just aimed at a different audience”. Its casualness is loaded. As Groves puts it: “It rejects parliamentary polish and signals Mancunian proximity: practical, ordinary, and deliberately outside London political dress codes.”
Burnham is a shape shifter; not all he seems to be.