Supportive sandals for very narrow small feet

[RidgyTipper]

I've just come home from seeing my chiropractor for knee issues. She asked to see my shoes then recoiled in horror and told me to throw them in the bin as they're doing me harm. They're Fitflops and apparently are no good at all for very narrow feet like mine. Once she pointed it out I could see how they were causing my feet to sort of roll inwards. Can anyone recommend a brand of sandals which suit narrow feet? I'm a size 3 so can easily wear children's brands too.

No one else have narrow feet?

I have quite narrow feet and the narrow width birkenstocks are great for me. They don't tend to sell them in stores though, only online

Thanks for replying! She specifically told me NOT Birkenstocks - but then I wasn't aware they did a narrow fitting. Thanks for that, will check them out.