They aren't exactly breezy but I always travel with my Express Editors. As long as I get them pressed before I go away and fold or roll them neatly they never wrinkle (just the usual faint creases from sitting down) and I think they look cute with casual shoes as well as with dressy flats. I used to only have the lightweight wool ones but before my trip in June I bought 2 pairs of the summer version and I was surprised that they didn't make me feel hot even though they are mostly synthetic. Of course I didn't wear them on the hottest days though.