Narrow, pretty comfy sandals.... HELP!

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This time last year, my marriage was ending and pretty Summer things were way out of my mind!
Fast forward a year and things are better- to the extent I am off on a romantic Summer holiday with a gorgeous man I met through Tinder
After a disastrous shopping trip yesterday, I am desperately in need of some pretty summer sandals for this holiday. However, I am beyond awkward!
Requirements:

• Flat: I hate wedges especially
• Need some padding under the balls of my feet. Cannot abide ones that are hard
• Pretty: maybe a silver / gold / rose gold? Nice enough to wear with a dress in the evening
• Comfy enough to walk around in all day
• Leather or fabric upper (we're off to Italy so it'll be hot. Need something that will breathe)
• Narrow fit. This is the hardest. My feet are ridiculously narrow and flat. I usually live in narrow fit toe post birkies but these aren't the prettiest. Things like Saltwater are too wide even on the tightest fit. Clarks put me a D width
• Size 5

Any ideas??? Can get to all major shops and not against online but I do need to try on.
Thanks

I've got my eye on these at the moment...
www.modainpelle.com/noelle

Those moda in pelle ones are really nice!

These are a tad narrower than standard narrow Birkenstocks. I have got them in a different colour and absolutely love them!

I have similar feet and have had some success with ankle boots from Hudsons. I've not tried their sandals, but it's possible that they are also narrow-fitting. What about these silver sandals ?

Thanks for the replies.
The Hudsons look like they have that flat hard sole which I know would ache and the other Birkies are too wide- I've tried them before.
The Moda in Pelle ones could be worth a try though. The sole looks comfy.
Currently wearing children's sandals! They fit. Sitter but not the grown up sophisticat look I want swanning round the Amalfi Coast!