Daniel Webster-Clark, another cofounder, told BuzzFeed News the original four founders could no longer devote the time to the company they had begun as a side project while at business school together in Chicago.
"We've got lots of other stuff going on and it kind of got to the point where it made sense to shut the door," he said. "We ran it for as long as we could, but we weren't able to come out with the new styles and be as innovative as all our customers deserve."
When the team first announced their Kickstarter fundraiser in 2017, the RompHim went massively viral. The concept of a male romper was mocked by some, including on Saturday Night Live, but the RompHim also drew a ton of interest and orders.
"We had this crazy idea to see if we could get friends and family to buy 100 of them," said Webster-Clark, "but it took a crazy turn."
The four founders — Neuman, Webster-Clark, Chip Longenecker, and Elaine Chen — raised over $350,000 from Kickstarter, and the colorful onesies became a sort-of-ironic-but-sort-of-not male fashion fad that summer, particularly in the LGBTQ community.
Other competitors soon popped up, but the RompHim became the generic term for any male romper.
Still, the novelty clothing item's popularity dipped off pretty much as soon as the summer of 2017 ended.
Search results for "romphim" also declined dramatically.