japanese style insulation lunch box office worker portable with rice lunch box soup bowl with lid simple soup box microwave bento box

blue-large blue-small size blue-two pack (with thermal bag) blue-three pack (with thermal bag) blue-four pack (with thermal bag) m-large m-small size m-two pack (with thermal bag) m-three pack (with thermal bag) mi-four pack (with thermal bag) brown-large brown-small size brown-two pack (with thermal bag) brown-three pack (with thermal bag) brown-four pack (with thermal bag)

microwave oven foam insulation