Waterproof Material :Made of waterproof aluminum foil, this lunch bag keeps your food dry and safe from spills and leaks.Thickened Insulation :The thickened insulation of this lunch bag keeps your food at the right temperature, whether hot or cold.Portable and Lightweight :This handheld lunch bag is lightweight and easy to carry, making it perfect for on-the-go meals or picnics.Korean Style Design :The Korean-style design of this lunch bag adds a touch of elegance and sophistication to your daily meals.