Bysco uses a forgotten material, the filament of the mussels, the byssus, a filament which connects the molds to the rocks or to a rope. It is not only natural but also resistant, fireproof, ecological, and thanks to it, Bysco can manufacture thermal insulators and acoustic absorbers.
The material is cleaned and dried before being transformed in Hauts-de-France. The challenge is to move from the artisanal stage to a pre-industrial process.