This is a white short-sleeved dress shirt from THE SUIT COMPANY (スーツカンパニー). It's size S and made of 50% cotton and 50% linen. There are two spare buttons attached to the tag. It's a Cucitura slim fit and EASY TO IRON. There are a few stains. "Cucitura" in Italian means "with love in the stitching." They offer neo-dress shirts with stylish details that break away from traditional rules.