Thermal Lunch bag/ Cooler bag

A thermal insulated bag is a specially designed carrying bag that maintains the temperature of its contents, whether hot or cold, for an extended period. It is typically constructed with multiple layers, including an outer durable fabric (such as polyester or nylon), an insulating middle layer (commonly foam), and a reflective or waterproof inner lining, often made of aluminum or PEVA. These layers work together to reduce heat transfer, keeping food and beverages at the desired temperature during transport