Do you want to know WHY they "traditioonally" wear baggy pants?
God's honest truth: Several different Bedouin told my father, when he worked among them, that it was to "catch their savior", because their scriptures/traditions say "he would be born of man"!
No, NOT born of Man; but born of man, a MALE, because a woman is an unclean a vessle so her womb could not hold such a "holy" babe.
Baggy pants, because it would be totally inexcusable to drop the infant; BUT, those same scriptures/traditions say that 'he can come at any moment', so they have to be ready, and those baggy trousers ensure he'll be safely caught!!!
No, I do NOT have any links to this; I only have my late father's word that this is what Beduoin tribesmen told him, when he worked in Saudi & Kuwait some 50 years ago.
Considering the only available orifice through which their savior could be emitted, this seems like a believable tradition for them
I was making a funny, but now that you mention that, I had heard of this but thought it was a Sikh belief.