This is a collarless shirt from the brand BREATH, part of their "Collar Less" model line. The shirt utilizes a check fabric that has been processed to achieve a vintage feel.
Applebum(アップルバム)
Breath
Wax London
Second/Layer
Eptm
Sunflower
Our Legacy
Golden Goose
Austin Post
Woodbird
Maison Mihara Yasuhiro
Darkpark
Carhartt WIP
Dunst
Kuwalla Tee
Meta Campania
Represent
Srvc
R13