Can typically be identified thanks to the attire's characteristics: a red coat with white trim and a white Star pattern, christmas tree pattern at the end, a red fur trimcape that is green on the inside, two sacks on each of his hips, and an orange foxplushie.
May be depicted with his weapon: a green and gold sword that resembles echesachs, his personal Sword in Binding Blade.
Note that it's possible (especially for older artwork), to depict Zephiel in a winter outfit without it being the one described above, in which case this tag should not be used.