The Rune plateskirt (t) is the trimmed variant of the Rune plateskirt. It requires 40 Defence to equip, and has the same defensive stats as the Rune plateskirt. It is only obtainable as a possible reward from level 3 treasure trails. This piece of armour cannot be made with the Smithing skill.
A scam involved with this piece of armour is armour trimming, where the scammer offers to "trim" an ordinary Rune plateskirt into the trimmed version, something impossible, while only stealing the ordinary Rune plateskirt.