Old school barefoot shoes?
How about Converse All-Stars? Just enough sole for padding and protection. Flexible. Cheap. Always kewl in any casual or dressy casual setting if you have the right style (LOL).
Of course, like virtually all shoes sold in this country, they are made in China. I avoid Chinese goods for lots of reasons. But there are not many non-Chinese options. I like the Soft Star company but their shoes don't quite work for me and they are expensive. And I love all the fun All-Star flavors. You Groks could even get flavors like zebra!
Haha, good point. My husband wears them a lot, & when he doesn't, his feet hurt.