What if I need to change my booster while I'm out? Customer Support April 16, 2020 06:15 Updated Follow You can stash used boosters and a couple spares in our Carry Bag. A toiletries bag works too. Related articles How do I choose the right underwear size? What does the booster do? How do I wash my Aisle period underwear? What is Truetex? Do I need to wear a pad or tampon with them? Comments 0 comments Article is closed for comments.