This is a nice 'SA-Wehrmannschaften' Armband (Armbinde). These armband were worn by the SA Military defense training groups which were formed in january 1939, after july 1942 these armband were worn on civilian clothing. The red coloured linnen armband has a machine-sewn on white rayon roundel with interwoven golden-coloured 'SA Sportabzeichen'. The armband was taken home as a souvernir by a US GI during World War 2 who wrote 'May 8, 1945' on the armband. Nice piece of history!