D&G Single-breasted Pantsuit with Red Lining

This is a D&G single-button black pantsuit. It's likely from the late 1990s to early 2000s. The red lining features the D&G logo. I purchased it at a Takashimaya department store.
This was during the peak of Dolce & Gabbana, a time when D&G was creating many attractive pieces, and I bought it out of admiration. I believe it has a generally slim fit.

It has been dry cleaned.
Size 38

There is a mark on the collar, possibly from ironing. It might appear slightly whitish depending on the angle. I don't think it's very noticeable when worn, but sensitive individuals should refrain from purchasing.