I am taking 2 day flights 1 from TLV-FRA and the other from FRA-SFO. I was wondering if I should wear shorts and a teeshrt as opposed to jeans and a sweater so I don't overheat on the plane. I know the plane has the aircon but if I use the blanket I should be fine. I want to feel comfortable since in CA the weather will be in the 80s upon my arrivals and I don't want to come overdressed. I am also staying overnight at a hotel so I want to pack my backpack as light as possible.