Hi there, Adrian, Guests of the Disneyland Resort are allowed to take outside food and non-alcoholic beverages with them. Refillable water bottles are also allowed, even metal bottles like the brand you have. One of my favorite refillable water bottles is an insulated metal bottle that I got at the Disneyland Resort.

Yes, you can absolutely bring a Hydroflask or any other reusable metal water bottle into Disneyland and Disney California Adventure in 2026. Disney actually encourages this to reduce plastic waste and keep guests hydrated in the California sun. The only "hard rule" is that the container cannot be made of glass, as glass is a prohibited item for safety reasons. When you go through security, it is a good idea to have your Hydroflask out of your bag or clearly visible, as the metal can sometimes trigger a "bag check" by the weapon-detection scanners. Once inside the park, you can refill your bottle for free at dedicated Refill Stations (often found near restrooms) or by asking for a free cup of ice water at any Quick-Service restaurant. Bringing a 32oz or 40oz insulated bottle is a "pro-move" for 2026, as it keeps your water ice-cold all day, saving you from paying $5+ for a single plastic bottle of Dasani.