Long before there was a "mob wife" or "quiet luxury" or "coastal grandma," there was a "gorpcore," the original cool girl fashion aesthetic. Back in that trend era, Kendall Jenner's affinity for straight-legged jeans and dad-style basics made her trend posterchild

years later, the term was almost abolished. But Jenner still sticks to that fashion screenplay — especially on off-duty days when she feels a little more casual. Her street-style appearance from yesterday fell directly into that category.

On the 11th month. 12, the Kardashian star was photographed in Los Angeles looking every bit gorpcore Queen-and a lot like her best friend, Haley Bieber. Jenner debuted her new haircut and color dressed in a completely muted neutral, with the exception of a white baseball cap in her head. She wore a puffy leather bomber jacket in rich shades of chocolate brown and carried a huge brown clutch under her arm. In addition, the oversized accessories made of dark brown leather matched perfectly.

The approach is practical, but Jenner's outfits are actually wildly trendy (though subtly so). Thanks to A-list fans like Rihanna and Margot Robbie, the massive clutch has been trending for 1 minute.

Her jacket has had a big moment among even the most chic celebrities. This fall, Haley Bieber made his name as the poster child of the leather bomber jacket trend. Legions of stylish fans have already followed her track - and apparently it includes her best friend, Kendall Jenner.

Two weeks before Jenner debuted her latest look, Bieber wore almost the same version. Back on May 10, she was photographed wearing a brown leather bomber with her husband Justin Bieber, pants, a baseball cap, and a huge clutch under her arm.

This is all saying: A leather bomber is about to take over. Now prepare the closet.