What happened: Flags will be available at participating McDonald's restaurants and other Kansas City metro locations while supplies last. Online flags cost $10. [Purchase details](https://www.chiefs.com/redthursday/).
Why it matters: Proceeds benefit Ronald McDonald House Kansas City, helping families stay together while children receive medical care. [Fundraiser details](https://www.chiefs.com/news/chiefs-unveil-2026-limited-edition-red-thursday-flag-benefiting-ronald-mcdonald-house-kansas-city).
What to watch: The accompanying virtual 5K runs Sept. 10–13, with registration proceeds supporting the same charity. [Run details](https://www.chiefs.com/redthursday/run).