Mercedes Formula One driver Valtteri Bottas is feeling the heat and suspects his team's new black overalls have something to do with it.
Mercedes changed their car and clothing livery this season from silver to black in support of the sport's anti-racism campaign and to emphasise a team pledge to improve diversity.
Bottas told reporters after sweating through Sunday's Spanish Grand Prix that he had shed three kilos over the 66-lap race.
"This year, it's been even hotter in the car," said the Finn, who was heard on the team radio complaining to his engineer about how hot the overalls were.