This also consists of a plaid skirt which wraps around the body and has one shoulder strap.
Most of this material is from the Finnish Museums Online website.
L. Molotova, 'Folk Art of the Russian Federation', Leningrad, 1981
Ildiko Lehtinen, 'The Finno-Ugric Collections at the National Museum of Finland', Forssa, Finland, 1990
Vita Bandere et al, 'Latvian National Costumes, vol II', Riga, 2003