9×11.5″ Glossy Cardboard Shipping Mailer

Made from 14 pt paperboard, this mailing envelope features a liquid laminated gloss finish on the front that resists light moisture and scuffs, while the uncoated back allows for easy writing or labeling. An adhesive strip on the flap provides a secure seal, and a rip-open perforation makes it easy to open without tools. Measuring 9″ high by 11 1/2″ wide, it fits documents, photos, and flat materials, helping to keep them protected during shipping or storage. The paperboard construction is sturdy enough for everyday mailing needs, and the glossy front gives it a clean, professional look. Suitable for office, business, and personal use where flat items need reliable protection.