During the Vogue episode, Emhoff told her friends she's excited about the collaboration because she's followed Hay "for a really long time."
"So many of her designs are so cohesive to my personal wants and needs," Emhoff said of Hay.
Although Emhoff and Hay didn't say when their knitwear collection will be launching, they did offer some details on what their design process will look like.
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"Even though my stuff is more traditional femininity, I think that you're also doing something playful and playing with femininity, too, in colors and shapes and all of that kind of stuff," Hay said to Emhoff in the episode.
The two designers are still determining what the line will include, however, Emhoff said she would love to create a "smaller little handled bag" with a knit granny-square pattern.
Ella Emhoff is a rising star in the fashion industry
Before becoming widely known as a "style icon," Emhoff was designing knitwear and selling it on a commission basis.
A post shared by ella emhoff (@ellaemhoff)
In February, the 21-year-old released a collection of five one-of-a-kind pieces on Mall, a shopping platform for up-and-coming designers, and it sold out in just a few hours, according to The New York Times. The items - which included two sweater vests, a Tweety Bird purse, a pair of shorts, and a dress - ranged in price from $160 to $320.
In the "Good Morning Vogue" episode, Emhoff also reflected on what her life looks like now just a few months after the inauguration.
"I have to be honest, I was not expecting this," she said. "I think life really did a 180. Obviously, things are changing, life has changed. There are a lot more people involved in my life now."
Representatives for Ella Emhoff and Batsheva Hay did not immediately respond to Insider's request for comment.
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