Biodegradable shoe in ocean water (IMAGE) University of California - San Diego Caption A sustainable Blueview shoe biodegrades in ocean water after 11 weeks. Credit Daniel Zhen, Algenesis Inc. Usage Restrictions Must be used in conjunction with Science of the Total Environment research paper on biodegradable materials in the ocean environment. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.