I'm going to make a burrito to take to work and eat several hours later. What should I wrap it up in?

The burrito will be in a whole wheat tortilla and filled with beans, mashed sweet potato, and rice. I'll be keeping it in the fridge at work and eating it cold. I have foil, wax paper, parchment paper, plastic cling wrap, paper towels, zip bags, glass storage containers. What should I pack the burrito in?