Yes, backpacks are perfectly acceptable at Disneyland Resort in 2026, provided they meet specific size and safety requirements. All bags, including backpacks, must not exceed 24 inches long x 15 inches wide x 18 inches high. Every backpack is subject to a security screening, which in 2026 often uses advanced "Evolv" scanners that allow you to walk through without removing items, though security officers may still perform a manual check if something is flagged. You are allowed to bring your backpack on almost every attraction; most rides have a small mesh pocket or floor space where you can secure your bag between your feet. For high-intensity rides like Incredicoaster or Star Wars: Rise of the Resistance, Cast Members will ensure your bag is tucked away safely. If you have a particularly large or heavy backpack, Disneyland offers locker rentals near the main entrances of both parks, which is a great option for storing extra layers or souvenirs while you enjoy the day.