Everything we use, eat, wear and buy requires water to manufacture.
Take a pair of jeans as an example. Although a pair of jeans seems to have nothing to do with water, water is used in every stage of jeans production. This includes cotton planting, fabric weaving, bleaching, dyeing, and the processing of jeans. Jeans are almost primarily made of water. While you cannot find physical water in jeans, it actually takes 7,286 litres of water to produce just one pair of jeans, starting from cotton fields, to the cotton cloth, and to the finished product. This type of water used is called “virtual water” because it does not become part of the final product.