This extra-large heavy-duty insulated ice chase is watertight to keep food warm, cold, or frozen. They are constructed with the same concept and design as professional insulation delivery containers that is used by pizza delivery services. The top is a zipper closure design, and they are made with premium 80% non-woven PP materials with a sturdy dual slider zipper. The weight capacity is 30 pounds and built-on extra strong reinforced tear free handles on each side in addition, they are environmentally friendly. The soft wall ice chase can fold down for easy storage, and they are easy to clean. They are designed to stand upright making it easy to put hot or cold food into the bag without the sides caving in on itself. Things like frozen foods, meals, salads, beverages, etc. will stay at their original temperature for hours. Will keep things cold or warm up to 3 hours when you are not using heat/cold packs. They are great for picnics, food delivery, traveling, catering, restaurants deliver, going to the beach for the day and much more.