Stormpiea Mail

The Stormpiea Mail (ストルムピエア・メイル, Sutorumupiea Meiru) was one of the Three Treasures of Stormpiea, with the rank of third. It is an incredibily powerful suit of armor, forged centuries ago by the sky island's best craftsmen out of a large amount of dials, precious metals, and other substances. It was also equipped with a variety of powerful weaponry in order to deal with a variety of opponents, including Devil Fruit users.

It was first used during the Stormpiea Arc of Grand Voyage, where it was used against the 'invading' Marimo Pirates with great effect before Dhahaka D. Knave managed to destroy it after a long and viscous battle.