What is "bootees"

Usage examples of "bootees".

Charity, counting out change to a very pregnant young woman who had bought three pairs of bootees, stretched her ears, anxious not to miss a word.

They worked their feet into the bootees, aided by Beadle and von Tannenbaum, acting as dressers.

She was wearing zip-up furry bootees, three cardigans, an overcoat, a new woolly scarf Genevieve had bought her, and her best hat.