Hi everyone. I have been eyeing some Fidgi heeled sandals for spring/summer. I have only tried on one pair of Fidgi shoes and those were the black, pointy toe booties that were an Angie pick about a year ago. Sadly they did not work for my feet as the sole was too flexible. For my foot issues I need good arch support and a stable sole. Do all Fidgis have the flexible sole? Does anyone who needs good arch support have luck with these?