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tabi; traditional split-toe socks
着物を着る時は足袋を履くのが一般的だ。
It's common to wear tabi when wearing a kimono.
白い足袋は正式な場で使われることが多い。
White tabi are often used on formal occasions.
祖母に足袋の履き方を教えてもらいました。
I had my grandmother teach me how to wear tabi.