Sonja Morgan Says You "Can Never Go Wrong" With This Chic Fashion Buy

When it comes to fashion, Sonja Morgan knows it all. The Real Housewives of New York City blonde designs her very own fashion line and boasts a rather impressive luxury handbag collection, to boot. Throughout the years, Sonja has been nothing but generous with her style know-how, from sharing unlikely snow outfits to finding self-confidence in a bikini. But in a recent Instagram post, the RHONY cast member revealed the one fashion buy that holds her jaw-dropping wardrobe together — and it might shock you. 

"Keeping it casual for dinner," Sonja mused in her caption alongside a series of pics on Instagram on March 14 that captured her on vacation in Turks and Caicos. Sonja glowed with radiant, sun-kissed skin, a sleek shoulder-length bob, and a rich, smoky eye. But if you were expecting an opulent ensemble for her night on the town, think again. Sonja turned to her go-to fashion "must-have" for an easy dinner look that is not at all short on glamour. 

"Can never go wrong with a white button-down," she explained. "So hard to find a good one these days." In the pics, Sonja showed off her luxe look that included an oversized white button-down shirt with medium wash jeans, sand-hued slide sandals, and a few bangles that were reminiscent of the ocean. She added a pair of statement-making, white hoop earrings for added drama and, of course, rocked her everyday signet ring. 

"What’s your must-have piece in your closet?" she concluded. Well, now it's definitely a Sonja-approved, classic button down. 

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