Bast shoes...

Finnish bast shoes - virsut
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Bast shoes are shoes made primarily from bast - fiber
from the bark of the linden tree or birch tree: they are a kind of
basket woven and fitted to the shape of a foot. Bast shoes are an
obsolete traditional footwear of forest areas of Nothern Europe,
formerly worn by poorer members of the Finnic peoples, Balts,
and Slavs. They were easy to manufacture, but not very durable
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Photo from Kirvu, Tietäväl, Finland The
woman to the left is wearing virsut
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Drawings of birch bark shoes from U. T. Sirelius'
1921 book 'Suomen kansanomaista kulttuuria:
Esineellisen kansatieteen tuloksia II'
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