Yes, backpacks are permitted at Universal Studios Hollywood in 2026, but they are subject to a mandatory X-ray and physical inspection before you enter the park. There is no specific size limit mentioned for standard backpacks, but you are prohibited from bringing large suitcases or bags with wheels into the park. For most high-thrill attractions, such as Harry Potter and the Forbidden Journey or Revenge of the Mummy, you cannot take your backpack on the ride; Universal provides complimentary lockers (free for the duration of your ride) nearby for you to stow your belongings. Smaller, family-friendly rides may allow you to keep your bag at your feet. For 2026 visitors, it is recommended to keep your backpack "light" to speed up the security process and to ensure it fits into the standard lockers without needing to pay for a "large" locker upgrade.