Botanical Collection - Inside: Blank - A1 size (3 1/2" x 4 7/8") - Recycled Sage Paper Envelope - Printed on Tree- Free Cotton Rag Paper - Plastic Free Packaging Cotton rag paper is the perfect example of tree-free, upcycled and recycled paper. As a natural product, cotton is completely biodegradable. Cotton bits, usually the by-products of manufactured cotton cloth, are color sorted, chopped, and pulverized then mixed with water and laid out to dry. The process takes about three days.