The GEL-COOL Bento Box keeps your food cool, fresh, and safe. Place the ice-pack built-in lid in the freezer the night before you plan to use it, and then pack your lunch the next morning. Your meal will remain fresh for a few hours.
Another sustainable point is that powdered scallop shells are mixed into a material to reduce the amount of regular plastic used. This might be a small improvement but is a nice step toward more an environmentally friendly product.
Body and clasp: Polypropylene (heat resistant 140°C, cold resistant -20°C)
Cooling lid: ABS resin (heat resistant 60°C, cold resistant -20°C)
Packing: silicon rubber
✓Microwave and dishwasher safe.