Here a few opinions, or maybe you want to say characteristic which you want to take into consideration when you want to buy some winter socks: this pieces must be in harmony with the rest of your outfit (surprisingly for some you, but yes, the socks must be in line with your other pieces of your look, so try to match them every time); the
place where you are going to wear it (
indeed, to wear them anywhere it is wrong, be careful at that issue); your
cold resistance (hmmm, well, yes, from all you know better how much you can resist to hard winters, so having this in mind you can decide how to choose your socks).