ClarksWomen's Sillian Bella Mary Jane Flat

Can this shoe accomodate an orthotic? i need the extra depth that shoes like dr. zen and dr. drew offer, but navy is hard to find. thanks.

How are these shoes for along day of walking such as when traveling or shopping? Is there enough archsupport?

B says medium and n is narrow but in the size chart it says c = n and d = m. I see no wide classifications.

Where it is made china?