Sustainable nanotextiles and fiber-reinforced polymer composites in reworked clothing: an R&D approach to ocean-themed clothing design

Purpose The fashion industry faces serious sustainability challenges because of the environmental impact of fast fashion, including textile waste and energy use. However, sustainable fashion efforts are often limited to using eco-friendly materials without technologies that enhance durability and functionality. This study aims to develop ocean-inspired reworked clothing that integrates sustainable nanotextiles and fiber-reinforced polymer composites (FRPCs) to combine creativity, durability and circular economy principles. Design/methodology/approach A research and development (R&D) method was applied, covering problem identification, data collection, product design, expert validation, revision, limited testing and refinement. Data were gathered from literature review, observation, interviews, expert validation (two experts) and consumer surveys (78 respondents). Analysis used descriptive quantitative methods with mean score calculations. Findings The results of this study showed an average expert validation score of 4.75 (“very feasible”) and consumer acceptance of 4.64 (“very positive”). The final collection comprised six hoodies and three jeans made from upcycled fabrics, hydrophobic nanotextile coatings and FRPC reinforcement in high-stress areas, with functional performance evaluated based on expert judgment and user perception. Originality/value This study indicates that reworked garments enhanced with advanced materials have the potential to deliver aesthetic appeal, durability and ecological responsibility, offering an innovative model for sustainable fashion aligned with circular economy practices.