You searched for: breastplates (Engelska - Lettiska)

and they had breastplates, as it were breastplates of iron; and the sound of their wings was as the sound of chariots of many horses running to battle.
un tiem bija bruņas, līdzīgas dzelzs bruņām, bet to spārnu švīkstoņa kā kara ratu dārdoņa, kad daudz zirgu tos velk cīņā.

and thus i saw the horses in the vision, and them that sat on them, having breastplates of fire, and of jacinth, and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.
un tā es redzēju parādībā zirgus un viņos jātniekus, kam bija ugunīgas, tumši zilas un sērdzeltenas bruņas, bet zirgu galvas kā lauvu galvas, un no to mutēm nāca uguns un dūmi, un sērs.