Here is what I wore over Christmas, which was spent eating lots of food, drinking lots and generally having a lovely time with my nearest and dearest. Any outfit over Christmas should consider three things:
1. It has to make you feel fabulous,
2. It must be comfortable and oversized, to make space for the inevitable expansion caused by Christmas dinner,
3. It must be a dark colour for when you get gravy or cranberry sauce on you.
This look covered all of those things, something really simple topped off with killer shoes (which are so hard to walk in I can only wear around the house, but they are the perfect Christmas pair!)
Similar here from ASOS.
SHOES: CHRISTIAN LOUBOUTIN
Similar pair here.