Try to avoid synthetic fabrics
Synthetic fabrics—all of which are forms of plastic—have become very popular in clothes worldwide. They are cheap to produce and versatile, but unfortunately they also leach an obscene amount of microplastics into the environment just by being washed (potentially thousands of plastic fibres per load). Synthetic clothing are thought to be one of the main sources of microplastics that end up in oceans, rivers, and lakes. So when you’re shopping for clothes, keep this in mind, and try to choose natural fabrics, which are biodegradable and non-harmful for marine life and the ecosystem.⠀
Here is a list of synthetic fabrics to avoid: Polyester, Nylon/Polyamide, Acrylic, Viscose/Rayon, Rayon, Fleece, Microfleece, Elastane/Spandex/Lycra, and Acetate.⠀
Here is a list of natural fibres that are better for the environment (cotton through kenaf are plant-based): Flax, Hemp, Jute, Linen, Ramie, Sisal, Kenaf, Cashmere, Silk, Wool, and Organic Cotton.