NET
17 Now this is what the horses and their riders looked like in my vision: The riders had breastplates that were fiery red, dark blue, and sulfurous yellow in color. The heads of the horses looked like lions’ heads, and fire, smoke, and sulfur came out of their mouths.
Darby
17 And thus I saw the horses in the vision, and those that sat upon them, having breastplates of fire and jacinth and brimstone; and the heads of the horses [were] as heads of lions, and out of their mouths goes out fire and smoke and brimstone.
KJV
17 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.