Fisher’s coat is an older rendering of the upper garment Peter put on before coming ashore in John 21. The passage does not identify it as a special garment worn only by fishermen.
Definition
Fisher’s coat is an older rendering for the upper garment worn by Peter before he came ashore. The expression does not identify a special garment peculiar to fishermen; it refers simply to an outer or upper garment.
Biblical Usage
In John 21:7, Peter is described as naked and then girding on his coat before going to Jesus on the shore. The Revised Version and American Standard Revised Version render the word “coat,” reflecting its literal sense of upper garment.
Historical Bible Dictionaries
International Standard Bible Encyclopedia (ISBE)
<p>kot: This expression is found in Joh 21:7 where the Revised Version (British and American) and the American Standard Revised Version have "coat." John here, after representing Peter as "naked" (gumnos), pictures him as girding on his "coat" (ependutes), literally, "upper garment," and not at all specifically a "fisher's coat."</p><p>See DRESS.</p>