Chris Hemsworth's wife Elsa Pataky tells him what to wear.

Chris Hemsworth and Elsa Pataky

Chris Hemsworth and Elsa Pataky

The 'Thor' star, 32, has admitted the 39-year-old model, with whom he has daughter India, three, and 21-month-old twin sons Tristan and Sasha, influences his fashion sense in a "big way" because she knows what works for his body shape.

He said: "My wife influences my style in a big way. She says yes or no. She is a definite style maker. I need her opinion."

Meanwhile, the handsome star has just been announced as the new ambassador for TAG Heuer after jumping on board alongside fellow famous faces Leonardo DiCaprio, Tom Brady, Cristiano Ronaldo and David Guetta.

While shooting the new campaign for the luxury Swiss watch label, Chris said he instantly reaches for the Carrerra or Monaco watch because they work best for his lifestyle.

He said: "When I'm home and not working, I am surfing so much. I have the Carrerra or the Monaco that I wear when I'm surfing and swimming."

TAG Heuer announced Chris was joining the ranks last week after revealing they'd developed a close bond while he was shooting his movie 'Rush' in 2013.

The statement said: "We are delighted to announce Australian actor Chris Hemsworth joins the family of prestigious TAG Heuer ambassadors! Since the motorsport film 'Rush' the friendship between the Australian actor and the Swiss watch brand has grown very close."