Indigo® Manilla Boardback Envelopes are designed to keep important documents flat, protected, and crease-free during transit. Featuring a durable rigid board back, a secure peel-and-seal closure, and a clear "DO NOT BEND" message, they provide added protection for certificates, photographs, contracts, reports, and other important paperwork. Finished in professional manilla, these envelopes are ideal for offices, schools, businesses, and home use.