medium-width obi; medium-width kimono sash
Refers to a kimono sash roughly 26 cm wide, between a narrow hanhaba obi and a wide fukuro obi. Common in casual and semi-formal kimono wear.
A medium-width obi is often paired with everyday kimono.
Compound of 中 (chū, 'medium'), 幅 (haba, 'width'), and 帯 (obi, 'sash'). The term transparently describes the sash's intermediate width.