This vintage canvas shirt jacket was made by Atlantis Ultimate Weathergear of Sag Harbour, New York.  It is a heavy navy blue canvas with two chest pockets and a lace up front.  There is some staining and fade to the material. It is raglan shouldered.
Chest: 23″ (doubled =46 = size 42)

Sleeve: 34-1/2″

Length: 33″