() Americans will celebrate Flag Day on Saturday, marking the anniversary of Congress adopting the design of the U.S. flag.

At Allegiance Flag Supply in North Charleston, South Carolina, more than 6,000 flags are sewn weekly. The company lives by the motto, “American sewn, American flown.”

Linda Jones, known as Miss Linda, said she has always held a deep love for the U.S. flag, one tied to personal sacrifice. “I’ve had relatives who died in Paris defending this flag,” she said.

Jones is one of about 100 employees at Allegiance, which makes its flags entirely in the U.S., even as many manufacturers outsource materials or labor. From the poles and brackets to the Stars and Stripes, everything is made in America.

“We have control over our entire supply chain,” said operations manager Jeff Tanksley, a Coast Guard veteran. “It’s not just the people we have in this building. It’s the people that are fabric manufacturers, the people that make our star fields, the company in Utah that machines our spinners.

On Flag Day and every day, Old Glory flies high in Charleston, including outside Heavy’s Barburger, where Navy veteran John Hare runs his business.

“It’s a reminder of what we all aspire to have in our country, as a family, as a business, as a city,” he said.

Back at the warehouse, pride runs deep with every stitch.

“I take pride in every stitch that I do because of where it’s going and what it represents,” Jones said.