This is a lunch bag with a handle that has cooling capabilities and is washable. The inside is lined with beige aluminum heat/cold retention sheet. It is tear-resistant with mesh and washable (gentle wash). It's reassuring to put an ice pack inside during hot weather. The drawstring is made of wax cord. It can be folded when not in use. Size: Width 30cm (widest part), 17cm (bottom part) Height 15cm (excluding the drawstring casing) Gusset 12cm This is a drawstring bag that is compact and doesn't take up much space in your bag. For condensation and dew prevention. Use it to carry cold drinks or cold jelly to prevent heatstroke! We hope it will be useful for your enjoyable lunch times and new life. For yourself or as a gift.