You can add items to all of your players. Up to 3 items per player.

All players can always wear one item.

The second items slot is unlocked when your player has reached an AI of 10% by playing matches.

The third slot only opens if your player has a rare rarity. The rarity of your player is based on how good DNA you have put into him. If the player is not rare you need to inject extra DNA into him to up his rarity level.

When you add a player item the player attributes increases. The better the level of the item is the more boosts to the attributes it gives.