And to help you get in the mood, we dug out these reminders of Christmas jumpers you donned in years gone by.
The event raises money for the Save The Children cause. It’s an event which is well worth supporting.
So take a look at these great photos from Sunderland, Hartlepool and South Tyneside and re-live some wonderfully festive reminders.
5. Seasonal at St Joseph's RC Academy
Back to 2013 for this St Joseph's RC Academy sixth form Big Christmas Jumper Day in South Tyneside. Photo: TIM RICHARDSON
6. Aww bless! It's Grange Primary School in Hartlepool
Grange Primary School pupils wearing Christmas jumpers and different costumes six years ago. Photo: Stu Norton
7. EDF Energy in Sunderland
Some of the staff at EDF Energy, Victory Way, Doxford Park, who took part in their Christmas jumper competition in 2014. Photo: Picture by Kevin Brady
8. Super times at St Aloysius
Back to 2015 and these St Aloysius School pupils in South Tyneside were taking part in Jolly Jumper Day to raise funds for St Clare's Hospice. Photo: Stu Norton