Hey there, hi there, Rachelle! Welcome to planDisney. We love each and every opportunity we get to help Guests get the answers to all their planning questions.
I love to hear that you're planning all of your outfits for your upcoming visit. That is an important part of my planning process as well. I'm happy to share that, from your description, you should be okay to sport your Santa jumpsuit in the parks. The decision will ultimately be with the Cast Members at Security. As long as you aren't in full Santa gear, wearing anything deemed vulgar or revealing, or anything else that goes against
Property Rules, I really think you will be okay. I have seen plenty of Guests donning their themed holiday attire, including similar looks to what you are describing.
Be sure to keep an eye out for the upcoming weather! We have had some pretty warm days recently, but mornings and nights can get chilly. I always bring a layer or two for the colder nights. However, I don't enjoy lugging them around with me all day, so I love the convenience of being able to
rent a locker. There are locker rentals available in the Esplanade just outside of the park entrances or inside the parks as well. I usually opt for one of the options in the Esplanade when I'm park hopping; otherwise, the option in the park is great!
Rachelle, I hope you have the most magical visit during the
holidays.
Carrie