Item Packs are a bundle purchase that provides cosmetic items for new and existing players. Item Packs can be purchased from the in-game Item Shop. Each version of an Item Pack can only be purchased once. All items in the pack are non-tradable and can’t be traded-in.
Items in Item Packs can be shared across linked accounts on other platforms. Credits cannot be shared across linked accounts. If you do not see the Items across linked accounts, be sure to launch Rocket League on the account where the Item Pack was purchased. After launching, the Items should be shared across linked accounts.