Charles Ellicott Commentary Exodus 28:32

"And it shall have a hole for the head in the midst thereof: it shall have a binding of woven work round about the hole of it, as it were the hole of a coat of mail, that it be not rent." — Exodus 28:32 (ASV)

As it were the hole of a habergeon. — Linen corselets, or “habergeons,” were common in Egypt, and were shaped as indicated here. The word used for “habergeon,” taklărah, is thought to be Egyptian.