noun
vacuum storage bag; compression bag
A bag used with a vacuum cleaner to remove air, making clothes, futons, etc. compact for storage.
冬物の布団を圧縮袋に入れてクローゼットにしまった。
I put the winter futon in a vacuum storage bag and stored it in the closet.
旅行のとき、圧縮袋
When traveling, using compression bags keeps luggage from bulging.