Epimanikia
Epimanikia (singular epimanikion) are liturgical vestments. They are fabric cuffs, usually brocade, that lace onto the wrists of a bishop, priest, or deacon to contain the sleeves of the sticharion. There is usually a cross embroidered or appliquéd to the center.
Since the deacon wears a more elaborate sticharion as an outer garment, he wears the epimanikia underneath its sleeves.