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Model 1915 Bluse replaced the M1910 Waffenrock beginning in September
1915; the Waffenrock continued to be used throughout the war (Bavarian units switched to the Bluse in 1916). The eight front buttons were decreased to
six and covered by a flap, there was no piping, and the cuffs were
barreled only. Field blouses for generals were equipped with breast
pockets. The uniform was generally more comfortable and user
friendly than the M1910. All service arms, including cavalry, used the M1915.