Textile industry’s ecological footprint could decrease due to the many improvements in biodegradable sportswear that arose from heightened consciousness of environmentalism. Based on the sports context and environmental concern, this critical review examines state-of-art review of biodegradable sportswear. Concerning the natural fibres, organic cotton, bamboo, and wool have been looked at because of the current demands for eco-friendly substitutes for synthetic fabrics such as polyester and nylon, while the bio sourced polymers like polylactic acid and polyhydroxyalkanoates have also being studied due to the same reason. Despite the many environmental benefits associated with the use of biodegradable fabrics, such as reduced microplastic pollution and chronic waste, there are a few limitations with regards to biodegradable fabrics which include flexibility, moisture retention, and durability. It also looks at the decision between natural materials and biodegradability in terms of sustainability, finding that nature offers disappointing results in some other important aspects such as in moisture absorption and wear resistance of such fabrics that are used in sportswear clothing. Despite the possibility, they often need additional chemical modification to enhance the mechanical properties, which in turn often affects their biodegradation properties. Sustainability has mixed feedback according to athletes for biodegradable clothing; some textile types are relatively excellent in terms of comfort and breathing while they are not very good regarding flexibility and sturdiness. This assessment also puts into consideration the requirement of developments in textile technology to guarantee that biodegradable sportswear meets given performance standards for athletic purposes. Last of all, the assessment is conclusive of the fact that through the use of biodegradable materials, sportswear industry has a great potential of cutting down their impacts for the environment but there’s need for more research and development in this area so as to achieve sustainable performance. The insights thus may ultimately emphasize the importance of integrating stakeholder consideration into the manufacturing of textiles intended for athletes because of the call for a more sustainable sportswear.