Sienna Miller doesn't do chic when she's not working.
The actress is hailed one of the industry's most fashionable women and has even dipped her toe into the design waters by previously working on label Twenty8Twelve with her sister Savannah.
She's stepped back from the creative role now and admits that lounging around in comfortable clothing is a guilty pleasure.
"Off-duty, it’s pretty gross, like tracksuits and T-shirts," she confessed to Elle.com.
"But I guess I tend to really switch it up. I love rock 'n' roll stuff, I love tailoring - it’s kind of like a lot of different things."
However, the style icon certainly hasn't lost her edge.
"I was very honoured to be asked," she said when asked about the adverts.
"I love Burberry, and I’ve been friends with Christopher [Bailey] for years, so it was amazing. We had a great time shooting it with Mario [Testino], who’s also a great friend. So, yeah, it was like going to work with a group of really good mates."
Sienna and Tom are stylish parents to 14-month-old daughter Marlowe.
However, it's unlikely that she'll star in a Burberry Kids campaign any time soon.
"I don’t know about that," Sienna laughed.
Also sat with the pretty blonde at the show was One Direction heartthrob Harry Styles.
The 19-year-old weighed in on the British fashion house's classic designs.
“The coats are always really nice at Burberry,” he said of the English Rose collection.
“That’s the thing that, no matter [what], the coats are beautiful."
© Cover Media