Portable insulated fresh-keeping bags are lightweight, foldable, washable, fade resistant, and stain resistant. Enhance your outdoor experience with this unparalleled picnic bag, perfect for packing your favorite food! Made of waterproof and wear-resistant Oxford cloth. Internally lined with aluminum foil and top zipper, ensuring your food stays fresh for 8 hours. Tight. This picnic bag is your first choice for various outings, whether it's a day on the beach, camping trips, or even shopping trips.The quantity of over 500 pieces is based on sea freight