Limited Time backpacks are released during Seasons, Holidays & Special Events. They can only be bought on the store and have no guarantee of returning, but most will make a return at some point!
These backpacks are of the Ultra Rare rarity but have a base storage of 2,000 opposed to 1,000.
You are allowed to sell these backpacks for In-game Items or Core Credits only.
You will receive all purchased backpacks on new seasons as Level 1. Check your Soulcore Stash in-game for items by using /stash in-game.