Collars & Co is trying to create a new category that's one part casual and one part dressy.

The two-year-old apparel startup makes a collared polo shirt, along with other items, and targets predominately well-to-do males. It first got its start on TikTok, but an appearance and subsequent deal on Shark Tank led to a huge increase in sales.

"We saw about a 400% increase in the number of visitors," the night after the episode aired, said Justin Baer, founder and CEO of Collars & Co. "I think I attached about $200,000 to $250,000 in revenue that week." Baer joined the Modern Retail Podcast and dove into how he's growing his clothing brand.

Despite the sales spike, Shark Tank was just one helpful marketing moment. Baer, now, is focused on the long game. That includes investing in digital media as best as possible and even launching new retail concepts. For example, Collars & Co is going to open its first store in Chicago this month.

One of the big reasons the company is opening a store is because physical retail speaks directly to the customer Collars & Co targets. Our customer tends to be slightly older -- it's an older gentleman that's 35 to 65," said Baer. "And not all of them are on Instagram buying clothes online."

With that, the Chicago store is a test to see if the model can work. "We definitely want the store to be profitable. It doesn't have to be that profitable, because it's not the main driver," he said. "And it's going to be a fraction of the revenue that we're doing DTC."

Another big focus for the brand is on finding more customers. While it's seen huge growth, Baer thinks there's more digital marketing to be done. "Facebook is still the best, but we try a lot of different things," he said. "We're trying a lot of different angles, newsletters, a lot of different online platforms." That being said, Baer said he initially got the company off the ground by showing off his first product on TikTok.

And while other brands test out new types of advertising like TV, Baer is still bullish on digital being a primary driver for his brand. "I think digital is still going to be 95% of our ad budget this year," he said.

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