Fortunately, you can enjoy fashion while still making conscientious decisions for the environment. Sustainable luxury swimwear combines fashionable elegance and earth-friendly materials. Here are a few excellent reasons to make sure the next swimsuit you buy is sustainable: 1. Sustainable swimwear cuts down on textile waste. Textile waste is a huge environmental concern. The clothing industry creates a lot of refuse, as people usually throw away clothes they no longer wish to wear.