Built for the season’s most intense workouts, Under Armour’s “For When It’s Hot” campaign puts François Arnaud and HeatGear technology to the test

A new chapter unfolds for Canadian actor François Arnaud as he fronts Under Armour’s latest “For When It’s Hot” campaign. One of television’s most recognizable leading men, Arnaud is best known for his breakthrough role as Scott Hunter in the popular series “Heated Rivalry.” With his athletic presence and on-screen charisma, he makes a natural choice to represent the brand’s renowned HeatGear range.
The campaign puts Arnaud through a series of high-intensity training sessions, highlighting both his athletic physique and easygoing personality. Set against the backdrop of North America’s hottest weeks of the year, the imagery showcases Under Armour’s signature HeatGear gear, which is engineered with lightweight, moisture-wicking technology to help keep athletes cool and comfortable through intense exercise. First introduced in 1996, HeatGear has since become one of the brand’s defining technologies, continually evolving to meet the demands of modern athletes.
For Arnaud, the transition from on-screen athlete to international sportswear ambassador feels almost effortless. His portrayal of Scott Hunter struck a chord with viewers through its combination of genuine athleticism and charisma, establishing a natural affinity with Under Armour even before the official collaboration was unveiled.
As Under Armour continues to refresh its global image, Arnaud represents a new generation of ambassadors. His understated screen presence elevates him beyond the role of campaign face, allowing him to reflect the brand’s evolving identity while introducing HeatGear to an even broader audience.











