<Decomposition of Materiality and Identities> speculates a simulated ecosystem where biomaterials grow, decompose and shift form through time and changing environments. The project explores sustainable design solutions through combining bio design, digital fabrication, 3D-generative simulation and traditional fashion design and was awarded the LVMH Maison/0 Green Trial 2020 prize. A result of intense experimentation and development in a laboratory, the final outcome is a glass-like garment crafted from algae extract and silk cocoon protein (an otherwise-wasted by-product of textile manufacturing). This sensitive, reactive material responds directly to its environment and is able to fully biodegrade in water within 24 hours. With a key focus on sustainability, the project utilises 3D technologies to generate models of the textile’s shape, to digitally fabricate a casting mold, and to exhibit the garment, while also serving to consciously minimise waste.