Born from explorations of biomaterials valuing unconsidered weeds seeds, “Yours” shares what tomorrow's durable furniture could look like. By reaching the gap between eco-centred & human-centred design, this carbon-neutral seat made of a modular biomaterial backrest and reclaimed railways oak inputs new daily greener behaviours. Beyond sustainable consideration, it addresses the lack of comfort experienced by 50% of coworkers by redefining their interaction with shared furniture. Through the choice of the removable backrests desired, users finally become actors of their new personal comfort.