My thesis expands on the sustainability of the shoe industry. My theory is that we can produce future-proof and sustainable products using cutting edge technology and natural materials. Bioplastics may become the material of change that leaves a smaller ecological footprint than any current technology. There have been numerous innovations in the sector. However, in most cases a sustainable, nature-positive attitude is lacking, or poorly applied. The focal point of my thesis is the production of shoe soles. After identifying potential options for replacing the non-recyclable shoes that currently dominate the market, I examine the relevance of biopolymers, and composite materials derived from them, as an alternative to petroleum products. My aim is to compile a holistic picture based on a comparison between different materials. In addition to considering alternative solutions, I study the work of domestic and international designers for whom a material-centred approach, circular economy, local sources and recycling are important. My goal is to introduce my own biodegradable material onto the market. I also aim to explore the integration of responsibility on the part of the designer and a nature-positive approach into the production process.