The Pet-en-l’air is part of the 18th century women’s costume. It was an elongated jacket, fitted, but with a free back and the Plis Watteau.
The Pet-en-l’air is a kind of a Caraco jacket. A caraco is a style of woman’s jacket that was fashionable from the mid-18th to early 19th centuries. Caracos were thigh-length and opened in front, with tight three-quarter or long sleeves. But the Pet-en-l’air differs from Caraco by the Plis Watteau in the back.