I don't see anything sheer on Alibaba's sash, maybe if you provided a reference because I don't remember seeing it while reading. As for his shirt, since you live in southern Texas like me, or at least visiting, I would go with either short sleeved or even sleeveless. I don't think he's been seen without the jacket thing but I have some (fan)art that shows it being sleeveless which is what I plan on doing, plus think about where the story takes place it's gonna be hot there.
WIP to be debuted
San Japan: Laxus Dreyar (Fairy Tail)
Alamo City Comic Con: Hawkeye (Fraction run),
Street Vigilante Red Hood