Ah yes, the bra and cardigan that launched Katie’s campaign for fall’s new style icon and caused a viral frenzy, with publications like Vogue, Elle and The Cut all looking their cool over the cashmere set. 

The $520 soft-cup bralette and $1,540 fisherman-ribbed sweater from Khaite sold out in just one hour after the photos hit the Internet, with everyone attempting to recreate the barely buttoned yet utterly chic style. 

“It was very comfortable and easy,” Katie simply told Vogue of her decision to sport the now-infamous look, which she bought online by herself.

This is how we imagine Felicity Porter would dress if Felicity was revived today and that it meant as the ultimate fall style compliment. 

The ‘fit on its own, with the on-trend animal print midi skirt and blazer, is already a standout. But paired with the unexpected mint heel? Flawless.

Could you not see Jackie O sporting this exact ensemble back in the day? Katie updated a classic look by choosing an autumn-hued blazer and the it shoe of the moment, a slide mule. 

The fit and proportions are everything when you wear a suit, and Katie clearly has a great relationship with her tailor as the pant hem hits at the exact right length and the fit of the jacket is superb.

Is there anything more subtly sexy than a slip dress paired with a blazer?

And is there anything more casually chic than a slip dress paired with a matching trench?

Katie clearly knows how to make this hot hue work for her.

The ankle sock-heels-combo trend is a hard one to pull off, but Katie managed to do it here by keeping the color palette similar to her skin tone. And we are fully on board for the monochromatic red polka-dot and blazer combo. 

This is a classic New York look: all black outfit with a chic trench and inspired accessories.

This look is all about perfectly fitted basics, from the bootcut jeans to the silk blouse.

Running out the door in a basic outfit but want to give it just a touch of personality? Opt for a bold accessory a la Katie’s leopard crossbody bag, which elevates her casual look.  

because she was putting a chunky cardigan over two tops—a classic denim button-up and a white t-shirt—Katie smartly evened out the look with skinny black jeans and ankle boots.

While heels would’ve been the safer and more obvious choice for this NYFW look, Katie opted for ankle boots, adding more attitude to the all-black ensemble. 

Joey Potter, all grown up!