Designing fashion with biodegradable materials is transforming the industry by combining aesthetic innovation with environmental responsibility. As sustainability becomes a defining priority, designers and brands are embracing materials that can safely decompose without leaving a harmful footprint. This movement addresses the pressing concerns of textile waste and pollution, fostering a new era of mindful consumption and creativity. By rethinking not just what we wear, but also what happens to our clothes at the end of their life cycle, the fashion world is redefining luxury, quality, and ethical practice. The following sections explore the foundations, challenges, innovations, and future pathways in the growing field of biodegradable fashion.