Every Italian says 'another pair of sleeves.' The reason is in a Florentine law book.
Eighty dress codes
The city rewrote its clothing laws about eighty times. Tailors who broke them paid the same fines as the women who wore their work.
Only the sleeves
For decades, embroidery and decoration on women's clothes were forbidden. Except on the sleeves. So that is where all the beauty went.
Another pair of sleeves
Tailors made sleeves that laced on and moved from gown to gown. Change the sleeves, change the outfit. That's the story behind the phrase.
Quiet body, talking sleeve
A plain crewneck, then lace, sequins or a balloon shape from shoulder to cuff. The sleeve moves when you do. Nothing else needs to compete.
Look at the sleeve first
If the piece is calm and the sleeve has something to say, an Italian woman would buy it.