Jennifer Garner is luxury Italian fashion house Max Mara's first celebrity spokesmodel.
This is also the first time the 41-year-old US actress is fronting a fashion brand.
The mother of three and wife of US actor-director Ben Affleck will appear in its new JBag campaign.
Garner said in a statement: "I like the size of the JBag... I like that it's big enough to carry anything you want to stuff in there, but it's small enough that you won't lose your keys!"
She added that she was a natural fit for the brand: "My style is pragmatic... I like to wear garments that have a real luxurious texture and feel good against the skin."
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