For increased durability, our food delivery bags are made of high grade 500D PVC,5mm insulation foam rather than cheap polyester. Don't worry about beating up the bag when it's paired with expertly stitched zippers. This bag is intended for caterers, food delivery drivers, reusable grocery bags, or use as a cooler bag. Large and sturdy enough to transport baking pans with thick insulation to keep any food hot or cold.