背せ抜ぬき

noun

unlined in the back

Refers to clothing, especially jackets or coats, that have no lining on the back part. Often used in tailoring or fashion contexts.

• このジャケットは背せ抜ぬきで、夏なつでも涼すずしく着きられます。

  This jacket is unlined in the back, so you can wear it comfortably even in summer.