Lingerie is a category of primarily women's clothing including undergarments (mainly brassieres), sleepwear, cosplay, and lightweight robes. The choice of the word is often motivated by an intention to imply that the garments are alluring, fashionable, or both.
Lingerie is made of lightweight, stretchy, smooth, sheer or decorative fabrics such as silk, satin, Lycra, charmeuse, chiffon, or (especially and traditionally) lace. These fabrics can be made of natural fibres like silk or cotton or of synthetic fibres like polyester or nylon.