Christmas Jumpers Day: Families, offices and animals get festive

Jo Keech Children wearing Christmas jumpersJo Keech
15 December is Christmas Jumper Day. Run by Save The Children, the day has been going since 2012. Jo Keech's children are getting in the spirit before going to school in their jumpers.
@ali88gray Alison Gray wearing Santa-piggyback fancy dress@ali88gray
It's not just students who are sharing Christmas cheers in classrooms. School staff, including Alison Gray, are taking part in today's festivities.
Kerri Blackwell Two babies wearing Christmas jumpersKerri Blackwell
Kerri Blackwell's children certainly look the part this festive season.
Bowker Sadler Nesbitt the dog wearing a Christmas jumper with a snowman figure on the back of his jumperBowker Sadler
Nesbitt, the office dog at architecture firm Bowker Sadler, is carrying his Christmas spirit around the office!
@healthcare_learning Staff wearing an assortment of Christmas jumpers@healthcare_learning
With Christmas jumpers sweeping through many offices across the country today, staff at Healthcare Learning are joining in the fun.
Royal College of Speech & Language Therapists  A group photo of Royal College of Speech & Language Therapists staff wearing Christmas jumpersRoyal College of Speech & Language Therapists
It appears the festive season isn't complete without a group photo of everyone in their Christmas jumpers. The staff at the Royal College of Speech & Language Therapists are showing off their festive knits.
@TheSimonC9O @TheSimonC90 wearing a Christmas-themed suit@TheSimonC9O
Not everyone is content with limiting themselves to knitwear, and Yule-themed suits are popular among office workers who want to pull off something extra.
Emma Horne Jack the dog wearing his Christmas jumperEmma Horne
Jack, Emma's pet dog, is among the many animals getting involved in the Christmas Jumper Day shenanigans.
@holympethecat Cat wearing a Christmas jumper@holympethecat
It's not just about adorable dogs. Cats are taking part in the multicoloured good spirits, too.
Amy and Ruth Newton A ginger chicken wearing a jumperAmy and Ruth Newton
And Amy Newton's mum, Ruth, has even knitted a Christmas jumper for their chicken.