Vegan admixture from the Baltics.

The hemp fibers are obtained from the bast of the hemp plant. They are more abrasion resistant than cotton - and therefore perfect for sock knitting.

The first evidence of the processing of hemp fiber can be found in the year 2,800 BC.
While cultivation in Europe was almost limited to France until around 1990, it is now spreading again due to the wide range of uses for hemp fiber. The naturally gray-brown hemp fibers are popular because they have a low rotting tendency, are considered harmless to health and are resistant to pests.

In fact, there are people who think of hemp primarily worried about the THC content, but this can be safely forgotten in the industrially processed hemp plants.