Salvatore Ferragamo is letting its hair down for a good cause. On Sunday night, the company launched a line of casual men’s shoes labeled Ferragamo World. It consists of six different models, including desert boots, moccasins and sportier pieces, all with a youthful, less formal feel. The manufacturing process was designed to minimize environmental impact through the use of water-based adhesives and processes such as water tanning that take potentially harmful substances or waste out of the equation. In addition, a portion of the revenues from the sales of World products will go to Acumen Fund, which provides drinking water and clean energy to poverty-stricken countries including India, Pakistan and East Africa.