This is an excellent replica German WW2 M31 Canteen or FELDFLASCHE:
German M31 Canteen
The M31 canteen was introduced in 1931. Standard issue capacity was .8 liter. Initially the cups were manufactured in aluminum, but as the war progressed, changed to steel and finally bakelite .
Aluminum cups are 1/4 liter capacity and the container held .8 liters. Aluminum cups were produced in black, olive tan (tropical) and green.
The felt cover was intended for insulation (when made wet, it cooled the contents of the bottle).
Again-This is a replica intended for re-enactors. Can be used for hiking or paintball, Etc.
Asking $25.00