Greaser is a 1950s working-class rebel aesthetic of leather jackets, slicked hair, and motorcycle culture, popularized by films like The Wild One and Grease as an image of youthful rebellion. White tees with a rolled sleeve are the base. High-waisted dark jeans cover the bottoms. Leather motorcycle jackets and varsity jackets go over the top. Engineer boots go below, with hair slicked back using pomade.