Rose Apple Bag that enhances sweet and crispy taste for a long time

This is a bag customised for carrying rose apple. It comes with two layers of insulation with its outer part being a 2-mm thick foam and inside a thin foam sheet.  The thick foam protects the heat from the outside and maintaining the coolness inside. That arrangement enables the rose apple to produce more red substance, known as Anthocyanin which works against cancer, by 40-50%, while making the fruit sweeter by more than 40%, doubling its firmness, turning its colour from green to pinkish white due to the reduced creation of chlorophyll compounds when compared to being wrapped in a normal bag.