NET
3 The shields of his warriors are dyed red; the mighty soldiers are dressed in scarlet garments. The chariots are in flashing metal fittings on the day of battle; the soldiers brandish their spears.
Darby
3 The shield of his mighty men is made red, the valiant men are in scarlet: the chariots [glitter] with the sheen of steel, in the day of his preparation, and the spears are brandished.
KJV
3 The shield of his mighty men is made red, the valiant men [are] in scarlet: the chariots [shall be] with flaming torches in the day of his preparation, and the fir trees shall be terribly shaken.