George Kittle has a new offseason partnership, with the San Francisco 49ers star teaming up with Mug Root Beer for the brand’s bizarre new “Brotein” campaign.

Kittle appeared in promotional images and video for the rollout, which leans hard into gym jokes, bro-speak and the tight end’s larger-than-life public persona. The campaign is weird on purpose, and that is exactly why Kittle makes sense for it. Few NFL players are as comfortable going all-in on a bit, especially one built around lifting culture and chaotic energy.

In the ad, Kittle helps sell “Brotein” as a joke product tied to protein-shake culture, with Mug playing up the absurdity instead of trying to present it like a standard athlete endorsement. The whole thing is loud, goofy and aggressively on-brand for one of the 49ers’ most recognizable stars.

That new partnership is just the latest headline in a busy stretch for Kittle, who has stayed visible throughout the offseason for reasons both football-related and otherwise.

George Kittle’s Mug campaign fits his public image perfectly

The Mug Root Beer spot works because it does not ask Kittle to be something he is not.

His public image has long blended football toughness, WWE fandom, gym-rat humor and a willingness to look ridiculous if the joke lands. Mug built the campaign around that instead of dropping him into a generic commercial script, which gives the partnership more personality than the usual athlete-brand deal.

That matters because Kittle has become one of those rare players whose off-field appearances are almost as recognizable as his work on Sundays. Whether he is mic’d up, showing up at wrestling events or starring in a strange soda ad, he tends to feel like the same guy every time.

Kittle’s rehab update still matters most for the 49ers

As funny as the “Brotein” rollout is, Kittle’s health remains the bigger topic for San Francisco fans.

Recent updates around his rehab have kept attention on his recovery and what it could mean for the months ahead. That is the football layer running underneath everything else in his offseason. Kittle is not just a popular personality; he is still one of the 49ers’ most important offensive players when healthy.

His value goes beyond box-score production. He is central to the physical identity of the offense as both a pass catcher and blocker, which is why any sign of progress in his recovery gets noticed quickly. The partnership news is lighter fare, but it lands at a time when fans are already paying close attention to him.

WrestleMania gave Kittle another viral offseason moment

Kittle also made waves recently with another very on-brand public appearance at WrestleMania, where he went viral for chugging beers in the crowd.

That moment, like the Mug campaign, reinforced why he remains such an easy fit for crossover content. He does not look like an athlete stepping outside his comfort zone. He looks like someone having exactly the kind of offseason fun fans would expect from him.

Taken together, it has been a very George Kittle kind of week: a strange new partnership, more viral attention and continued interest in where he stands physically heading toward the season. The Mug Root Beer campaign may be the newest development, but it fits neatly into the bigger picture of an offseason where Kittle has stayed firmly in the spotlight.