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.
Since it's gotten hot, I switched from my winter futon to a summer one.
This summer blanket is thin and feels nice against the skin.
Compound of 夏 (summer) and 掛け (hanging/covering), referring to a light covering used in summer.