This productA specialized luggage with thermal insulation properties.，Insulated/Retains heat, product has a pearl cotton insulation layer+Aluminum foil tin foil, offering excellent thermal insulation and preservation; ice packs are packages with a constant-temperature effect, suitable for keeping cold./Retains heat (acts as warm in winter and cool in summer), with a thick thermal insulation layer,Offer excellent heat insulation and preservation; the product is foldable for easy carrying. Portable, lightweight, and stylish design ensures long-lasting preservation of food, convenient usage, suitable for outdoor picnics and daily life (e.g., perfect for children to carry lunch to school. Enjoy fresh food at any time while ensuring health and hygiene).Manufacturing is customizable according to customer requirements.