...I think list shoes are analogous to "carpet slippers" and I doubt the Misses Bingley had ever seen such a thing, much less worn one.

...
] Louisa
] Mistress of the Garderobe

Thank you Louisa. It would seem you are also our "lioness of the wardrobe". I feel enlightened indeed; by your decription of the material per se and (thanks to Dee )by the quotes from literature above.
But if list shoes and clogs were not fashionable, this must mean that elegant ladies would bring a pair of extra silk slippers to use solely inside the ballroom? And how about the gentlemen? No boots in a ballrooom, I suppose - unless you were in military attire? Hmm sorry if this has been discussed before!?