Only 3 types of dogs need sweaters or coats

This is interesting, especially because I own a small dog. Until yesterday I wouldn't bother the poor dog with sweaters and other type of clothing but we brought it to the "hair cutter" and she left less than 1 centimeter of "hair" which makes me believe he'll suffer from the winter cold you can feel as soon as you put a foot outdoors. We have temperatures around -5 and 5 degrees at this time which I consider cold for everyone, especially a small dog like my yorkshire.