On Thursday night, the Peterborough Petes are hosting the London Knights and when they take to the ice in front of the home crowd, they’ll do it in some intentionally ugly “sweaters.”

The Petes are honouring a long-standing Christmas tradition by wearing an ugly sweater-inspired jersey and they’re encouraging their fans to wear their own ugly Christmas sweater to the game as well. Here’s a look at what the Petes will look like Thursday:

The Petes are auctioning off the game-worn jerseys here, to raise funds for Operation Christmas Child (OCC). Half of the jerseys will be auctioned off online, and the other half in a silent auction at the arena during the game.