After five years and $3 million worth of research and development, two Pennsylvania scientists have developed a proprietary process to create a brand new, 100% leather waste fiber. The company, Sustainable Composites, is turning leather scraps into a new product called Enspire Leather to replicate the look, feel, performance and even smell of traditional tanned hide at a significantly lower financial and environmental cost. According to Sustainable Composites, producing ordinary leather typically wastes 25-60% of product in the tanning process because of the defects and limited dimensions of hide.