Several people have mentioned to me that their stores are sold out of all the Frozen backpacks. Amazon does have a Frozen Backpack in-stock at time of post for $21.01.
It’s higher than the stores but if you are having a hard time finding it, it might be an option. You could also take time to check out if eBay has anything.
I hope you all end up finding one if you are looking for them!!
Keep in mind prices flip fast and inventory sells out even faster sometimes on Amazon!