While it's mostly very hot in southeast Asia, I plan to do some hikes that can go up and above 3000m. Considering some of these hikes will be at night in order to catch the sun rise, it'll be pretty cold I assume.
I also plan to rent a motorbike every now and then, and again, probably ride it at night in some occasions, so I'll probably freeze if I don't have anything warm to put on.
Any tips on what to pack to avoid being cold in those circumstances? Anything compact is welcome.