By Sharon Clott Kanter
Updated Nov 14, 2014 @ 2:34 pm

Zac Posen, your Insta’s #killingit. The New York designer won InStyle’s Best Behind the Seams Social Media Award this week thanks to his mix of scrumptious #CookingWithZac images, travel pics, and action studio shots on Instagram, which helped him garner more than 643,000 fans on the social platform. The news was revealed in our December issue—on newsstands starting today—and he was thrilled when he found out.

“I really love my followers,” he told us over the phone earlier this week. “They’re smart, they’re driven, and they’re open to learning new things all the time. I feel very lucky to live in a time when people who are interested in my brand and the lifestyle have the ability to have a dialogue with me personally. For me, it’s a real big thank you to all of the followers and fans I have social media and Instagram. And all the people who get hungry watching and following #CookingWithZac.”

A few of his most famous friends encouraged voters, including the creative team behind @projectrunway and model @cocorocha, but there was one person who definitely tipped the scale in his favor, he said. “Contrary to me having powerful friends, who encouraged people to follow me, I have an incredibly loyal mother, who definitely clicked away,” he said. Congrats again, Zac. And Mrs. Posen, too!