The Christmas sweater, usually a gift from my grandparents, was the worst. It would rarely fit and inevitably be covered with some sort of garish Christmas imagery. Even if it didn't fit, I'd have to wear it for fear of upsetting Grandma. Fortunately, if it was ugly enough, I would not be required to wear it outside the house. The point of an article of clothing one could only wear for a couple weeks of the year never made much sense to me.
Now if I really wanted something Christmas-specific to pull out for a couple weeks each year, I could imagine wearing this sweatshirt. As a sweatshirt, I don't imagine it would be as itchy and uncomfortable as a sweater. I'm surprised there hasn't been a Christian boycott of Amazon.com for selling this sort of thing, but I have to admit that I like it.