USB-Powered Insulated Lunch Bag with Heating Function, Large Capacity, Waterproof, Washable, Portable, Perfect for Commuting, School, Picnics, and

[Insulation] This lunch bag features a three-layer construction: outer layer: thick Oxford cloth, middle layer: pearl cotton insulation, and inner layer: thick, tear-resistant aluminum foil. This effectively blocks the effects of external temperatures. For example, when you're out in the winter, it prevents heat from escaping and keeps your food at the right temperature for a long time. In the summer, it also prevents the heat from quickly transferring into the bag, maintaining the freshness of your food. [USB Heating and Keeping Warm] This lunch warmer uses a USB interface to heat your lunch box quickly, reaching approximately 60°C (140°F) before automatically switching to keep-warm mode. It's compatible with a variety of lunch boxes, including glass, plastic, and steel, and is perfect for outdoor activities, commuting to work, or school, meeting your specific needs for temperature and texture. (Please note that heating times and temperatures may vary slightly due to external factors; this is normal.) [Washable Handle] This USB lunch bag features a handle design for easy portability. The inside of the lunch bag is lined with an aluminum membrane, which not only provides excellent heat retention but also prevents stains. Any grease or food particles that may accumulate can be easily removed by washing, preventing the growth of bacteria. [Durability] The lunch bag insulated USB heater is made of high-quality materials, making it sturdy and durable, while also retaining heat for a long time and being washable, effectively extending the product's service life. [Product Details] 1 x Lunch Bag with USB Heater. This lunch bag is approximately 23cm long, 17cm wide, and 8cm high. Please note that due to manual measurement, there may be a 1-2cm error in size.