Insulated food delivery backpack. The inner lining (aluminum foil) is great for providing an extra layer of insulation for hot and cold items. Grab a pizza delivery backpack to keep things fresh. Meanwhile, insulated meal delivery bags are easy to clean and durable enough to last a full day of work. LARGE CAPACITY: The meal delivery bags are spacious enough to hold most food packages. The delivery pizza bag is suitable for 5*12 inch pizza boxes and 20*250ml coca cola, hamburgers, sandwiches, beer, snacks, etc. The bike delivery backpack can be folded up for storage when not in use. Two-tier design for more orderly food placement MULTI-FUNCTIONAL DESIGN: Four side mesh pockets make ketchup, banknotes, mobile phone, power bank and paper towel more convenient, also can be used as a cup holder and more. Sturdy shoulder straps with extra stitching on the shoulder straps, reinforced design ensures the straps cannot break. Two-way premium zippers allow for smoother opening. Reflective tape around the backpack keeps your night work safe Expandable: Meal bag unexpanded size (16.5 inches*10.5 inches*14 inches), expanded size (16.5 inches*14.5 inches*14 inches), expandable zipper can expand an extra 4 inches on the bottom layer for extra capacity. Easily stacks 1-5 12" pizza boxes. WIDELY USE: Bike delivery backpack keeps your food fresh for delivery, picnic, hiking, kayaking, camping, beach, road trip, outdoor, BBQ, party, casual outdoor activities and more! Meal delivery bag backpack is perfect for Uber Eats, DoorDash, Postmates, Grubhub or Catering