Mailjackets® are strong, rigid paperboard mailers made with high quality, hand-sorted, recycled materials. They are constructed with a bottom fold for superior strength. The pressure sensitive, self-seal adhesive closure system is reliable, tamper-evident and easy to use. We offer open-side or open-end style mailers in 12–26 point board weight. These mailers are ideal for your “Do Not Bend” shipments such as photos, documents, printed photo books, calendars and CDs.