Yes, you are absolutely allowed to bring a backpack into Disney Springs, but it must pass through a security screening. Upon entering the Disney Springs complex, all guests must walk through metal detectors, and any bags, including backpacks, purses, and diaper bags, are subject to manual inspection or X-ray screening by security Cast Members. There are specific size restrictions to keep in mind: bags or backpacks cannot be larger than 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm). Additionally, certain items are prohibited inside your backpack, such as weapons, glass containers (except small baby food jars), and alcoholic beverages. While you can carry your backpack into most shops and restaurants within Disney Springs, it is worth noting that some high-end venues may have limited space, so a compact daypack is generally the most convenient choice for a day of shopping and dining.