“First, my wife Brittany got them for me, so I’m not throwin’ y’all down, but I have to wear ’em, ya know,” Mahomes, 28, told the brothers of his former high-school sweetheart, 28.

“At the same time, I threw ’em on that first season [and] we had a pretty good season that season,” he explained of how it all started back in 2017.

“I only wear ’em for game day, though,” he continued during his Denver Broncos and Buffalo Bills game commentary, noting “they’re not too worn down” or “nasty.”

“I clean ’em. I wash ’em. Every once in a while, at least,” joked Mahomes. “I mean, if we’re on a hot streak, I can’t wash ’em, you know? I’ve gotta just keep it rolling.”

Added the athlete, “As long as I’m winning football games, I’ll keep the superstition going.”

The Super Bowl 2023 champ’s superstitious ritual was revealed back in February by the Chiefs’ former backup quarterback, Chad Henne, who gave a glimpse into Mahomes’ game-day prep during a guest spot on The Adam Schefter Podcast.

“He has a baseball background, so he has to have a certain thing each and every day,” Henne shared of the Kansas City Royals part owner. “He comes in, he does his work. His notes are written out a certain way. Same pair of underwear, which probably not a lot of people know, on game day. He’s been wearing it since I’ve been part of it.”

When pressed for more details, Henne added, “They’re red. I’m not sure if they’re Hanes or if they’re Lululemon, but it’s one or two of those brands, and ever since he comes in the locker room — boom, it’s right there. I’ll be stretching, and like I said, you just glimpse up, and you’re like, ‘Damn, kid’s wearing them again.’ ”

“This definitely has to be a superstition and a good-luck charm, for sure,” he added.

In addition to racking up red-underwear wins, Mahomes is now modeling at-home loungewear professionally, as he and his family just launched a holiday campaign with Kim Kardashian’s SKIMS.

“This is our first campaign as a family, and shooting for SKIMS all together was an awesome moment,” the two-time NFL MVP said in a press release of the family’s matching red-and-black checkered pajama sets.

Added Mahomes, “I’m all about comfort and these sets will be my go-to at home all season.”