Christmas Jumper Day is an annual fundraising campaign in the UK organised by charity Save the Children. On a specific Friday in December, people are encouraged to make the world better with a sweater and raise funds for Save the Children by wearing a Christmas jumper and making a minimum donation of £1.
Those taking part can wear a Christmas jumper they already own, decorate an existing jumper with festive decorations, or even knit their own. Christmas Jumper Day is popular with schools and workplaces. Groups may take part in additional fundraising activities on the day, as well as making donations.
Save the Children launched their Christmas Jumper Day in 2012 on Friday, 14 December.
In 2015, Christmas Jumper Day took place on Friday, 18 December.