Zora Tunic

The Zora tunic is an exact copy of the Goron Tunic and the Kokiri Tunic except that it is blue. You can buy this from the shop in Zora's domain for a massive sum of 200 Rupees or you can be given it. It lets you breathe underwater, which is tremendously helpful for the Water Temple. If you didn't have it you wouldn't be able to progress in the game, same as the Goron Tunic.

