• Designed to meet first class mailing standards, our first class mail envelopes ensure solutions for mailing catalogs, magazines, projects, or multiple documents at once.
• Crafted from durable 28lb. white wove paper, these first class mail envelopes deliver protection for professional and secure mailing
• With a reliable, easy-to-use seal, you can trust that your contents remain secure throughout the mailing process without having to use glue
• Our 9x12 first class mailing envelopes featuring a wide opening and a center seam design. This smart construction allows you to quickly stuff multiple pieces of business mail in our envelopes
• Distinctive green first class markings ensure your envelopes are instantly recognized by mail carriers, guaranteeing prompt handling of your important mail.