Habergeon: A Part of the Defensive Armor of a Soldier
Source: Nav
Exodus 28:32
with an opening at its top in the center. Around the opening shall be a woven collar with an opening like that of a garment, so that it will not tear.
Exodus 39:23
with an opening in the center of the robe like that of a garment, with a collar around the opening so that it would not tear.