This is an example of a 1937-1942 pattern Imperial Japanese Navy flight suit. This was standard warm weather zone flight suit worn by naval aviators and aircrews.
This flying suit was obtained for research by the U.S. Army Air Forces Foreign Technology Division (FTD) during World War II. These items were made available for study by commercial firms who could then incorporate any improvements American flight clothing.
Transferred from the United States Air Force, Foreign Technology Division
Japanese Imperial Navy one piece coverall flight suit; chocolate brown gabardine outer shell; zip front with 3 button flap; one upper patch pocket with button closure on left breast; light green square patch on upper left breast; 3 button on ankles and cuffs; three belt loops; patch pockets with button flap on each thigh.