NASB 2020 Translation choice in Exodus 39:5

I have just finished reading the five books of Moses in NASB 2020, believe or not, this following part was actually the strangest bit to me. Anyone who studied the original languages, could you please shed some light on why 'its overlay' was inserted here, in addition to the original verse in the NASB 95. Why not 'Ephod' instead of 'Overlay'? Is the 'Overlay' the breastplate that has the 12 stones on it? Is this translation choice supported by the original language (Hebrew text)? I asked this because I'm assuming the 20 edition wouldn't go into the extra trouble if not for making the translation more accurate, because it's certainly not more readable, at least to me. Had to refer to other translations to figure out what's going on in this bit.

NASB 20: And the skillfully woven band of its overlay which was on it was like its workmanship...

NASB 95: The skillfully woven band which was on it was like its workmanship...

ESV: And the skillfully woven band on it was of one piece with it and made like it...

NIV: Its skillfully woven waistband was like it—of one piece with the ephod...

CSB: The artistically woven waistband that was on the ephod was of one piece with the ephod, according to the same workmanship...

NET: The artistically woven waistband of the ephod that was on it was like it, of one piece with it...