Our big plastic shipping bags are lightweight and feature strong stickiness, which not only helps reduce transportation costs but also ensures the safe delivery of your products. Designed as tamper-evident poly mailer envelopes, they offer added security and peace of mind during transit. Our 14.5x19 poly mailers are durable, professional, and perfect for businesses seeking reliable and cost-effective shipping bags. These high-quality poly mailers are sure to set your brand apart and leave a lasting impression.
Greenway Plastics is a wholly owned factory of Jiaropack.
Originally established in 2006, the company was further strengthened in 2009 through the merger of two family-run businesses—Grandway Plastics and Evergreen Plastics—bringing together decades of manufacturing experience and a strong commitment to quality.
With nearly 20 years of industry experience, we have built a solid reputation for reliability, consistency, and efficient production.
Based in Houston, Texas, our factory produces high-quality plastic products for businesses and households across the United States.
