Florida Sen. Marco Rubio is trying to stamp out criticism from other presidential candidates about his slick, zip-up boots by saying he's giving American business a leg up.

Rubio's ankle boots became the subject of Internet scrutiny after he was photographed wearing them in New Hampshire on Jan. 3.

Pundits and fashion columnists commented on them ad nauseam. Rubio drew fire from his GOP rivals for being perhaps a bit too chic for the campaign trail. Some speculated they were to make the 5-foot-10 senator appear taller. Kentucky Sen. Rand Paul called the boots "cute" and former Florida Gov. Jeb Bush's Right to Rise super PAC made a commercial mocking them.

While Rubio initially called the focus on his footwear "craziness," he has worked at thinking on his feet. At a Jan. 18 campaign event in Waverly, Iowa, a voter jokingly asked about the boots. Rubio declared his boots, appropriately outfitted with a Cuban heel, are a patriotic choice.

"They sold out of those boots online," Rubio said. "They're made in Wisconsin. Florsheim! You know what that means? That means I did more for American business in one week than Barack Obama did in seven years!"

PREVIOUS COVERAGE: Rubio can't believe the attention on his boot

He's right that Florsheim's website says some sizes of their $135 Duke boots are out of stock, but they should be available by Feb. 1. A Florsheim spokesman told us sales of that style have "increased significantly" since Rubio was shown wearing them.

As for the part about being made in Wisconsin, well, Rubio probably should have watched his step.

Like all of the Glendale, Wis., company's shoes, Rubio's boots aren't made in the United States. The company recently collaborated with designer George Esquivel to create a luxury shoe line that is made in California, but Florsheim said their products are made in Asia, mostly from China.

That trend goes back to the 1970s, when Florsheim's then-owner, St. Louis-based International Shoe Co., moved production to India, where Rubio's Duke boots were manufactured. The company also makes some items in Italy.

Founded in 1892 in Chicago, Florsheim once had five U.S. factories and 2,500 employees by the 1920s. While at one time holding 70 percent of the men's shoe market, the company eventually suffered from lackluster sales and a stodgy image, declaring bankruptcy in 2002.

It was resurrected by Florsheim family scions through Weyco Group, the same company that distributes shoe brands like Nunn Bush and Stacy Adams (also foreign-made). No shoes are made at Weyco's headquarters in suburban Milwaukee.

It's not really surprising that the American company's boots are imports, as shoe manufacturing in the United States is on shaky footing these days. The American Apparel and Footwear Association said that domestic production has started to increase in recent years, but U.S. boot and shoe sales are still around 98 percent imports.

Rubio's campaign didn't respond when we pointed out the boots were not made in America. There are still bootmakers in Wisconsin, however. Weinbrenner Shoe Co., for example, makes work boots in two central Wisconsin factories, and Allen Edmonds makes most of its high-end shoes and boots in Port Washington, about 20 miles north of Glendale.

We have to put our foot down on this one. We rate Rubio's statement Pants on Fire!

Read more rulings at PolitiFact.com/florida. Contact Joshua Gillin at jgillin@tampabay.com. Follow @jpgillin.