Sai De Silva knows a thing or two about running between runway shows.

While the Bravo star joined the refreshed cast of “Real Housewives of New York” just last year, she’s been building her following — and closet — for much longer as a front-row fixture and fashion content creator.

And now, with another New York Fashion Week done and dusted, the ever-stylish star is giving Page Six Style a behind-the-scenes glimpse at how she stayed fashionable on the fly for the Jason Wu and LaQuan Smith shows. 

“I had to hurry [to] change my outfit,” she told us moments before leaving for the latter, clad in sky-high platforms and a dress ideal for “showing out” at the “exciting” show.

Below, watch the Bravoleb’s week unfold and shop the must-haves behind her designer-clad dash around the Big Apple — from earrings that “look luxe” to one of Rihanna’s Fenty Beauty favorites.

“Fashion week during September is unpredictable. The weather is still pretty warm and a good blotting powder will keep your makeup intact.”

“A great pair of gold earrings not only looks luxe, but can also really jazz up a plain outfit.”

“I love this buttery soft lip balm by Summer Fridays. I always keep one in my purse.”

“I typically run on no sleep during NYFW, and sunglasses are a must for hiding any signs of sleepy eyes.” 

“I love handbags. I will forever collect them, and this is a very versatile piece that you can mix and match with.”

“Ballet flats are all the rage, and being comfortable is a priority during fashion week.”