All packs for sale in the FUT Shop have an eye icon and a button to trigger the preview. Doing that exposes its contents as if the player actually had bought the pack and opened it.
Once the player has seen the revealed cards, they may then buy the pack with either FUT Coins (the free in-game currency) or FUT Points (the premium). If they don’t like what they see, they don’t have to buy the pack. But there will now be a 24-hour wait period before they can preview another pack or buy a different one in its class. If they buy the pack, that timer immediately expires.
