noun, noun which may take the genitive case particle 'no'
Refers to feet without socks, stockings, or shoes. Often used in contexts like walking barefoot, being barefoot indoors, or describing the state of the feet.
夏は素足で過ごすのが好きだ。
I like going barefoot in the summer.
彼女は素足にサンダルを履いていた。
She was wearing sandals on her bare feet.