is a material made from 85% Polyurethane which is often used for manufacturing (sleeve) cuffs. It can be stretched to 480 - 700% and contracts to its original size afterwards. The best known brand name is Lycra. A typical material for trousers and skirts may have 3-7% Elasthane, for stretch-clothing (like swimwear), the material could contain up to 30% Elasthane. The more Elasthane a piece of clothing has, the tighter it fits to the body's shape.