Yes, coolers are permitted in both Disney World and Disneyland, but they must adhere to strict size and safety regulations. As of 2026, the maximum allowed size for a cooler (or any bag) is 24 inches long x 15 inches wide x 18 inches high. Hard-sided coolers are allowed as long as they meet these dimensions, but soft-sided cooler bags are often preferred for portability. A major "don't" in the Disney cooler policy is loose or dry ice; all ice must be contained within reusable ice packs or sealed Ziploc bags to prevent leaking and to speed up security screenings. Additionally, you cannot bring glass containers (except for small baby food jars) or alcoholic beverages into the parks. Coolers are a popular way to save money on water and snacks, but keep in mind that they must be carried or stored in a locker, as wagons and stroller-wagons are strictly prohibited from entering the parks.