Thanks, all. Nice to know you like these. The quality is great -- I am putting them through their paces (literally, ha ha) and they are doing well for comfort and wrinkles -- they stay nicely crisp without feeling at all uncomfortable.
Zaeobi, that's incredible! I, too, have a short waist and a longer rise (and am just about 5'4"). It has been super helpful to me to work out those proportions.
Re Fit Flop, I have never been able to do well with their closed shoes apart from one pair of sneakers that did work. But most have been too loose on me. Now the sandals are, too. I'm going to look into Vionics to see if those work for me.