Skinny jeans are also known as narrow-leg jeans.
The emphasis is on the area between the butt and the leg, keeping the hip close and the leg line long.
In the '40s, the poor in the western United States were trying to save cloth, so jeans were made to fit the curve of the leg.
But in the '90s, a Parisian costume designer named kellan kimberly held a cocktail party with the theme of "going back to the past", and his design “1420-ever” inspired by a pair of '40s skinny jeans in response to the theme, which has since become popular.
Skinny jeans have become a new fashion trend, with many Hollywood actresses enthusiastically embracing them.