Irridencent Taffeta & Shoe fabric?

Ladies - I need your help.

I am a bridesmaid in a wedding and our dresses are Navy Irridencent Taffeta. It's a beautiful dress.

What type of SHOE should I get ...

satin?
silk?
lux?
is ther another material out there that i am missing?

All the BM's are trying to figure out shoe fabric that would match closely with irridencent taffeta.

HELP TIA

My BMs are wearing irridescent taffeta and I just told them to get any kind of silver shoe they want. I think probably no matter what fabric you get silver in, it will look good because the shininess of the silver will complement the irridescense of the dress. My guess is that silk would look best though

I think the bride wants them to match, although I think Silver & Navy would be stunning!
I was thinking satin also.