This one piece jumpsuit is soooo soft & comfortable for flying. It’s also lightweight & flowy, perfect for hot climates. The neck was wide enough to just slip it down. As for sizing, I’m 4’10”, 106lbs with a larger bust. I ordered a small. Another plus was that I was able to hand wash it in the sink on vacation & hang it to dry with no wrinkles, so I wore it to travel home as well. You can dress it up as well - we were late arriving & had a casual dinner - no time to change so I tied a pretty scarf in my hair, threw on wedge heel sandals, hoop earrings & a bunch on bangles & it looked great!