The popular model arrived at the Giles show in London last night (16 September) and was clearly out to shock in her all black balaclava designed by fashion label Black Score.
Putting on a show for the waiting paparazzi, Cara climbed out of her car and began pulling funny faces, sticking her tongue out and holding her hands up in the sign of horns.
She teamed her mask with a silk bomber jacket, an oversized T-shirt and leather trousers.
Later on, Cara ditched the balaclava for a black beanie hat and donned a pair of sunglasses too.
This accessory swap might have also been due to the fact that she lent her mask to rumoured love interest Harry Styles, who was caught wearing the strange mask backstage at the fashion show.
Cara posted a fun picture of herself with an incognito Harry - who was also sporting a leopard print jumper by Prorsum - and wrote: "Got another one @blackscore #bsroguemodels".
It seems like ski masks are starting to become a regular wardrobe item for the folks of Celebville.
Kanye West famously wore a red version of the winter accessory during Paris Fashion Week in January, while pop-star Justin Bieber proved his quirky fashion credentials with a black balaclava in April.
We wonder who we'll see sporting one next?
What do you think of Cara's outfit last night? Let us know below, as the best comment each week wins £50!