9 They had breastplates like breastplates of iron, and the sound of their wings was like the thundering of many horses and chariots rushing into battle.

Read Revelation 9:9 Using Other Translations

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.
they had breastplates like breastplates of iron, and the noise of their wings was like the noise of many chariots with horses rushing into battle.
They wore armor made of iron, and their wings roared like an army of chariots rushing into battle.