WDW News Today reports that the parks are moving to reusable bags made out of mostly recycled material. Apparently each park will have their own bag designs.
It’s always good to recycle and protect the environment. Thanks to Disney for doing their part to help conserve our environment!
See pictures of the new bags here: https://wdwnt.com/2019/01/park-specific-reusable-bags-coming-to-walt-disney-world-parks-and-resorts/