The Innova Art Photo Smooth Cotton Natural White - 4" x 6", 100 Sheets (315 gsm) is made from 100% silky smooth cotton. It is acid free and has a matte finish. Photo Smooth Cotton media offers the photographer a luxurious silky smooth surface on a true archival cotton paper. Treated with Opti-coat, Innova's precision matte coating to assure superior DMAX, vivid detail and brilliant color. A highly opaque, scuff and tear resistant media ideally suited for photography and digital fine art. Use matte inks, enhanced matte setting.