These shipping labels are made from recycled paper. Label paper is processed chlorine-free so that the number of harmful substances associated with the manufacturing process is substantially reduced. Both the labels and packaging are printed with soy-based inks that are derived from renewable materials. These labels are curbside recyclable with paper waste and use a recycling-compatible adhesive that won't interfere with the recycling process when adhered to a paper substrate. The packaging is also recyclable and can be disposed of with paper waste. Please Note: The backing sheets of the labels are not recyclable and should be disposed of separately.