This type of knit hood was furnished by the Bureau of Aircraft Production to World War I military aviators as part of their standard flying equipment.
Transferred from the War Department, Bureau of Aircraft Production
Country of Origin: United States of America
Clothing (Flat): 24.1 x 29.2cm (9 1/2 in. x 11 1/2 in.)
United States Army Air Service olive drab wool knit winter flying hood; covers entire head and neck.