Clothing said to be imbued with the blessing of the Thunder God. It has high defensive capabilities and increases the wearer's attack accuracy and resistance to lightning-based attacks. While rarely available to the general public, it is said to occasionally appear as a rare find in the Rockaxe armor shop.
Early games used the variation 雷神のふく (with ふく in hiragana), while later games used the full kanji 雷神の服. The kanji reading remains the same, as both 服 (the kanji) and ふく (hiragana) are pronounced fuku. Although 服 generally means "clothes," it is often translated as "garb" in games.