Side note about my minimal packing attempt for a 3 1/2 week winter trip. Expecting temps between 32 and 55F. My under seat bag barely holds: One lightweight Merino dress One thicker turtleneck Merino dress Cashmere cardigan I wore a linen dress and cashmere pullover on the plane, and that worked fine. Low suede boots Black tights Umbrella Other doodads. It weighed 16.8 lb at home, and I won't add much else.