Friday December 13 is officially Christmas Jumper Day. And if you didn't think Christmas jumpers could be sexy, allow us to prove you wrong. Plain wrong.

Staci and Holly have been kind enough to demonstrate the almighty power of the Christmas jumper in this here gallery. Dust off your scrolling fingers and behold the majesty.

And we're raising money for the Disaster Emergency Committee, who are doing invaluable work to help those devastated by the typhoon in the Philippines. Donate whatever you can here.