夏なつ掛がけ

noun, noun which may take the genitive case particle 'no'

summer futon; light summer blanket

A thin, lightweight futon or blanket used in warm weather, often without a heavy cover.

• 暑あつくなってきたので、冬ふゆの布ふ団とんから夏なつ掛がけに替かえた。

  Since it's gotten hot, I switched from my winter futon to a summer one.

• この夏なつ掛がけは薄うすくて肌はだ触ざわりがいい。

  This summer blanket is thin and feels nice against the skin.