In SO12 the countermeasure that Finn came up with for the Demi Spirit's magic were banners with clothes from different Spirits. As far as I remember none was given a specific name like Salamander Wool and Undine Cloth. But yeah, there are indeed clothes made by the other types of Spirits. Who knows what are their effects though.

Ah, so I wasn't insane! Nice!

Thank you for the reply!

Hmm...Salamander Wool is more specific in terms of the type of cloth than Undine Cloth.

I think I have work to do to come up with names/types of cloth to use for the other Spirits.

Suggestions welcome, of course! lol

Found it! It is in Volume 12! We get two names as well!

Elsewhere, Tione and Tiona's group were also attacked, with Tione noting that the green flesh covered dungeon was attacking them using various sorts of magic from all sides. In response, Finn ordered everyone to use the Spirit Flags, which were items that were blessed by the Spirits like Salamander Wool attached to a pole. Just as they expected, the Salamander Wool Flag successfully dispersed a fire magic that was launched. Each of the flags were created from multiple of the same item and were all created by the Hephaestus Familia. The items included Salamander Wool, Undine Cloth, Gnome Toga, Tonitrus Mohair, etc. Thanks to the Spirit Flags, they were able to deal with the attack much more efficiently, and since damaging the walls caused the flesh to repair itself instead of attack, they quickly made their way through to the Demi Spirit Rooms.