While researching this question, I came across an article I'd rather not link to1 that asserted that Jesus wore pants. The particular bit of evidence they cited was:
Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war. His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself. He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God. And the armies of heaven, arrayed in fine linen, white and pure, were following him on white horses. From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty. On his robe and on his thigh he has a name written, King of kings and Lord of lords.—Revelation 19:11-16 (ESV)
According to the author who advocated pants, the writing on the thigh is a sure sign that Jesus wore pants and not a tunic2. I think it obvious that theory is wrong, but what does it mean that "on his thigh he has a name written"? What is the symbolism? Is there some sort of historical referent?
Google for "Did Jesus wear pants?" and you'll probably find it fairly quickly. I hope that in the very near future this question and its answers will be ranked higher than that hateful article.
The author of the article equates a tunic with "a dress".