Sizing help

Hi!

Does anyone know if these two are available in narrow?

And if they aren't, what size should I get?

I am usually 36 narrow, so would I be 36 normal still if there is no narrow option?

https://www.birkenstock.com/de-en/sahara-birko-flor-futura-sandcastle-%2F-black/4066648212720.html

https://www.birkenstock.com/de-en/gizeh-eva-black/4052001424213.html