The first compliment I got in an Italian fitting room made no sense to me.
Born with a shirt on
What Italians say about someone lucky. The 'shirt' is the amniotic sac some babies arrive wrapped in, long read as a sign of good fortune.
To sweat seven shirts
To work extremely hard for something. Raising four children, or finding a plumber in August. Nobody counts the shirts.
The habit and the hat
L'abito non fa il monaco: the habit doesn't make the monk. Tanto di cappello: hats off, for a perfect risotto or an exam well passed.
It fits like a paintbrush
To fit perfectly, as if painted on. A phrase from painting, first used by Goldoni in the 1700s. The one compliment worth hearing in a fitting room.
Made as a pair
A sheer mint mohair sweater sold with its own matching tank, so the color match is exact. May it fit you like a paintbrush.