polyester

This material is characterized by its high resilience and ability to retain shape, making it a staple in the garment industry for crease-resistant clothing. It is often blended with natural fibers like cotton to combine the breathability of organic materials with the strength of synthetics. As a mass noun referring to a chemical substance or a type of fabric, it does not have a plural form in standard usage. When referring to specific garments, the noun describing the item (e.g., shirts) is pluralized rather than the material itself.