However, the star of her look was, undoubtedly, the shiny leather pants that exuded sophistication and edge. On Bella Hadid: Saint Laurent Cassandra Belt ($475) Hadid isn't alone in her preference ...

These leather pants come stylishly in different brands, finishes and textures, from sleek and shiny to matte and ridged, and are often associated with rocker vibes or motorcycle aesthetics.