Our Conformer® Light Duty Mailers feature the Conformer® patented expansion design which provides 360° perimeter protection. These mailers are made from lightweight 100% recycled paperboard. The versatile capacity of these mailers allow them to hold a little or a lot. The Peel It! & Seal It! closure makes sealing easy and the E.Z. Open Tear Strip ensures your customers have an easy and pleasant opening experience.