Christmas jumper

Christmas jumper
An example of a 1980s Christmas jumper
Typejumper

A Christmas jumper (British English, Hiberno-English and Australian English) or Christmas sweater (North American English), also ugly sweater for their over-the-top designs, is a sweater themed with a Christmas or winter design, often worn during the festive season. These elaborately figured sweaters are more often knitted than crocheted. A more traditional approach is a roll neck (or "turtleneck") top-pulled garment. Embellishments such as tinsel, reindeer, or sparkles are considered to make such a sweater "ugly".