OpéraSPORT has created a material list to guide fabric selection based on industry benchmarks such as the MADE-BY Environmental Benchmark and the Higg Materials Sustainability Index.

Materials are evaluated based on factors including production processes, resource use, and composition. Materials are categorized to help designers and fabric sourcers make informed choices. Some materials are prioritized, while others are being evaluated for potential alternatives. Certain materials are not used due to sourcing considerations.