Casual Shirt

A Casual Shirt is a Shirt-class armor technically defined in Golden Sun: The Lost Age.

In
Despite being fully coded into the game cart, this item is impossible to acquire in-game without utilizing some form of hacking. While a Shirt, it can only be equipped by male Adepts. Its purchase value is 50 coins and its sell value is 37 coins. The Casual Shirt increases the wearer's base defense by 3, and it increases HP recovery by 5.

This would have been a rather practical shirt to wear for an Adept like Ivan, who has the lowest natural HP of all Adepts. In execution, a shirt with a small Defense boost and a good HP regeneration boost would be roughly equivalent to the Mythril Shirt, which adds a much larger Defense rating and also increases maximum HP somewhat.