Scarlet Gauntlets

Scarlet Gauntlets are a mail hand armor. They are part of the Chain of the Scarlet Crusade set.

Source
Prior to Mists of Pandaria, Scarlet Gauntlets were dropped by Scarlet Centurions in the Scarlet Monastery. Since patch 6.0.2, it is available via Crate of Salvage and Big Crate of Salvage.