I have flat feet so it's difficult to find shoes and sandals with good arch support. These were recommended by revain, so I bought them after trying 5 different ones; the arch support is very good and generally they are very comfortable, but unfortunately not very durable at all. After wearing them kess than a month the insoles got (quite) visibly scratched to the point that it's embarrassing to wear them. If the manufacturer would use a bit more durable material, they would be great sandals…