This is the Jacquemus LA Chemise Simon shirt in a White/Navy Arty Painting colorway.
Ralph Lauren
COMME des GARÇONS
Ahluwalia
Olaf
Moschino
Sabbatical
Kidsuper
Undercover
Ann Demeulemeester
Carne Bollente
Jil Sander
Tom Ford
's Max Mara
Jean Paul Gaultier
House Of Errors
Jacquemus