Thanks for the feedback.
Keen: I guess you meant the Arroyo II sandals and the Coronado; None of them are available over here. The only cycling shoes they have for men is the "
Commuter IV Bike Sandal".
Sidi Giau: Are you sure I could walk with those, eg. in a museum?
https://i.ytimg.com/vi/M_vNoAnm9ZI/maxresdefault.jpg
Shimano CT40: They look like a good option.