François Arnaud Joins Under Armour as Global Ambassador

The actor headlines the brand’s latest HeatGear campaign, celebrating performance in the hottest training conditions.

The Fashionisto

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Published July 24, 2026

François Arnaud sits on a gym bench in Under Armour's white HeatGear compression top and shorts, dumbbells resting on the floor beside him
François Arnaud pauses between sets, fronting Under Armour’s new HeatGear campaign. Photo: Under Armour

Under Armour enlists François Arnaud as its newest global brand ambassador. The actor fronts the brand’s latest “For When It’s Hot” campaign. Under Armour is launching the campaign during what it describes as the hottest week of the year in North America. The lineup puts HeatGear® at the center, alongside UA Vanish Elite, UA Icon Fleece, UA Sola, and UA Reign XT.

Arnaud arrives with an existing connection to the brand. Fans noticed Under Armour products worn throughout Heated Rivalry. Reflecting on the partnership, Arnaud said, “If you’d told the skinny awkward kid I used to be that one day I’d be an ambassador for a sportswear brand, I would’ve laughed.”

François Arnaud for Under Armour

“What makes this moment feel so special is that it’s a reminder that we don’t always end up where we expect, and growth can look very different from what we imagined,” he added. “Grateful and honored to partner with Under Armour, who were willing to meet me right where I want to be.”

Photographed in the gym, Arnaud wears Under Armour’s HeatGear® compression top with matching training shorts, socks, and sneakers. The campaign focuses on strength training and warm-weather performance, while reinforcing the brand’s expanding presence at the intersection of sport and entertainment.

François Arnaud stands in a home gym holding a dumbbell in each hand, wearing Under Armour's white HeatGear compression top and shorts
François Arnaud holds steady between the rack and the mat, a dumbbell weighting each hand mid-set. Photo: Under Armour

Explaining the partnership, chief communications officer Matt Dornic said, “What drew us to François was more than his obvious talent and looks. It was what he represents. The character he portrays ultimately finds his greatest success when he stops trying to fit someone else’s mold and embraces who he truly is. That’s a lesson that resonates deeply with us.”

“The best athletes perform with confidence, conviction, and authenticity, and we believe the strongest brands do too,” Dornic said. “As Under Armour continues to evolve, we’re focused on being unmistakably ourselves, and François embodies that mindset in everything he does.”

Arnaud’s ease in front of the camera carries over from his lighter, styled turn for L’Officiel Hommes China.

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