Lightweight, non-woven caps designed to cover hair and prevent contamination from hair, dandruff, and microorganisms in various settings like hospitals, food processing, and cleanrooms. They are commonly made from materials like polypropylene or SMS (spunbond-meltblown-spunbond) fabric, offering breathability and comfort. These caps are often worn with other personal protective equipment (PPE) and are disposed of after a single use to maintain hygiene.