Allpurpose design: This expandable insulated delivery backpack is built for pizza delivery and beyond. It is suitable for walking, bus or train deliveries, offering versatility and ease of use. Temperature control and materials: Constructed with sturdy oxford cloth, PE foam and an aluminum film lining to protect contents. Internal support rods help keep the bag rigid and stable during transport. Generous capacity: Large interior provides ample space for pizzas, subs, boxes, and sides while preserving temperature. Stable performance: Innovative base design with multiple base holders and a padded base minimizes shifting, ensuring pizzas arrive warm and well maintained. Practical and durable: Designed for daily courier use with durable materials and simple loading/unloading. Use scenarios: Pizza delivery on foot or by transit, with quick access and reliable heat retention. Office or event catering where multiple boxed meals need organized, temperaturecontrolled transport. Multiitem deliveries from small restaurants or food halls requiring flexible capacity.