Multiple uses: Expandable insulated backpack designed for pizza and hot meals. Adapts to different delivery methods, including walking, car, and public transit. Collapses for compact storage when not in use. Durable protection: Built from 600D Oxford fabric with PE foam insulation and an aluminumfilm lining. An internal support rod strengthens the frame and preserves temperature during transit. Spacious interior: Large internal capacity with a reinforced lid design to maximize insulation and keep food hot and fresh. Stable transport: Two internal support panels provide solid base support and loadcap suspension to prevent shifting and protect pizzas during delivery. Practical attributes: Fits standard pizza sizes, easy to wipe clean, portable with adjustable strap and carrying handles, and designed for easy storage when not in use. Use scenarios: Ideal for single or multiple pizza orders for home deliveries, catering events at offices or schools, and onthego meal deliveries via walking routes or transit.