A kimono made of a single layer of fabric, worn in summer or as an undergarment. Contrasts with 袷 (あわせ), a lined kimono.
See also: 袷
In summer, an unlined kimono is cool and comfortable.
Standard kanji spelling for an unlined kimono.
Explicit spelling including 衣 (clothing); less common but unambiguous.
Compound of 単 (ひとえ, single layer) and 物 (もの, thing). The spelling 単衣物 explicitly adds 衣 (clothing).