Published: 12th December 2013
The actress combined the knee socks with a festive red dress and similarly Christmassy red heels for the photo call.
The 23-year-old joined the campaign to encourage shoppers not to buy fur products this Christmas.
"Fur is cruel and gruesome, and it belongs squarely in Christmas' past," she told the Daily Mirror.
"With all the wonderful stylish, fur-free designs available today, it's never been easier to celebrate with Christmas gifts that are as kind as they are chic."
This is not the first PETA campaign that Flanagan has got involved with. Earlier this year she stripped off and had scales painted over her body to highlight the use of exotic animal skins in the fashion industry, posing underneath the slogan "Exotic skins belong in the Jungle: Leave wildlife out of your wardrobe".
She joins a number of other celebrities who have posed nude to highlight PETA's campaigns against exotic animal skins, fur and eating meat.
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