Selkie-Silk is a fine garnment made of the byssus filaments of a certain kind of saltwater clam. Main characteristics are a light dark sheen, being mostly translucent and very soft to the touch. The extremely fine and light cloth is highly valuable to this day.
This product of Sericulture is usually associated with the Oileánra-Archipelago and very, very expensive. Liliane Lannaire of the Tribe of Louth owned a dress of that material in 1718, showing it to the Kuronami-Merchant Noah von Bülow during the 1718 Leuda Spring Festival.