The lingerie commerce has expanded in the 21st century with designs that double as outerwear. The French refer to this as 'dessous-dessus' which basically means innerwear as outerwear. The bazaar Faire Frou Frou, which is an antiquated phrase meaning "show it off", heralds this philosophy by categorizing lingerie as an accessory with details such as straps and lace trim that should be layered and shown as articulation of one's outerwear.
Lingerie is a appellation for women's fashion undergarments. It derives from the French adage 'lin' for linen. While the term in the French language applies to all undergarments Sexy Lingerie for either sex, in English it is applied only to those women's undergarments designed to be visually appealing or erotic, habitually incorporating materials such as Lycra, nylon (nylon tricot), polyester, satin, lace and/or bluestockings and not applied to advantageous cotton undergarments.