'Outer' in the Bible

he got up from the dinner and took off [his] outer clothing, and taking a towel, tied [it] around himself.

So when he had washed their feet and taken his outer clothing and reclined at table again, he said to them, "Do you understand what I have done for you?

Then that disciple whom Jesus loved said to Peter, "It is the Lord!" So Simon Peter, [when he] heard that it was the Lord, tied around himself his outer garment (for he was naked) and threw himself into the sea.