![](https://www.historynet.com/wp-content/uploads/2018/03/ClothingConserve960x640.jpg)
Models demonstrate the difference between a three-inch prewar hemline and a wartime two-inch hemline—part of a practice U.S. officials promoted to reduce fabric use. (Nina Leen/ Pix Inc./ The Life Picture Collection /Getty images)
Nina Leen/ Pix Inc./ The Life Picture Collection /Getty images