Maggy Rouff (1896 - 1971) was a French fashion designer of Belgian origin. She was known for her understated sportswear designs at the beginning of her career, and later, for the feminine detailing in her garments such as ruffles, shirring, and the bias cut. Fashion is a distinctive and often habitual trend in the style in which a person dresses. It is the prevailing styles in behavior and the newest creations of textile designers. Prior to the mid-19th century, most clothing was custom-made. It was handmade for individuals, either as home production or on order from dressmakers and tailors. By the beginning of the 20th century, with the rise of new technologies such as the sewing machine, the development of the factory system of production, and the emergence of department stores, clothing had increasingly come to be mass-produced in standard sizes and sold at fixed prices.