I have a 39" chest and wear US Large or Japan XL in MB stuff.
Its worth comparing and converting their size chart though, because some JP sizes are in between a US size. In general sizing up 1 will work for most, but I would still convert and compare to be sure.
Also you can order US sizes from Japan in some models, but not others, so just order US if you have a belly or arent sure.
Its worth comparing and converting their size chart though, because some JP sizes are in between a US size. In general sizing up 1 will work for most, but I would still convert and compare to be sure.
Also you can order US sizes from Japan in some models, but not others, so just order US if you have a belly or arent sure.