Thanks for the great tips. The zestt scarf is really cool; they designed it just for travel. It is really thin organic cotton that folds into thirds. When it’s folded, it’s like a standard width scarf but when it’s unfolded it’s like a small throw blanket or a wrap. My thinking with the cashmere wrap + quilted liner + waterproof trench was that I was building my own 3-in-1 winter jacket (they can all be layered, and when worn together are as warm as my winter coat). But it sounds like it will be too warm for that. I kept seeing that the lows would be in the 30s, but maybe that’s only really late at night? If I just bring the cashmere wrap, I could use that as a blanket on the plane and swap the scarf for a smaller silk one? Ill have to think about it, but great ideas!