These Pizza Bags have wire Racks to help support the weight of multiple pizzas. The bag is made from Heavy nylon with reinforced stitching. PVC foam insulation and two-handle straps for balanced carrying. AM-PB-1914 (bottom picture) holds up to (6) 16" pizza boxes, stacked 3 and 3 with the wire rack supporting the middle. The AM-PB-1926 (top picture) holds up to (10) 16" pizza boxes, with the racks supporting each individual pizza. Superior quality from American Metalcraft insuring safe delivery of those large orders.