Environmentally friendly shipping labels offer a face sheet that is made using 100 percent recycled post-consumer fiber and is processed chlorine-free (PCF). The adhesive meets the USPS specification USPS-2-1238 so it can be safely recycled. High-quality, bright white, printer labels are both acid-free and lignin-free, making them safe for archiving. Labels will not yellow. Labels are compatible with both desktop laser and inkjet printers. Product packaging is made using 100 percent post-consumer material.