Marvel Rivals | Iron Man: Armour Model 42 Skin (All Platforms) 

For those who will be heading into Marvel Rivals in the launch window, the devs have prepared this Iron Man skin for all. Valid until 2025/3/5 

Use the code via the in-game menus to unlock it:

Access the options button (equivalent to the start button) on your controller and navigate to the bundle code section for redemption.