This 320x440mm Polythene Envelope is designed for durability and protection. Made from strong polythene, it offers excellent resistance to water, tears, and damage, ensuring your contents stay safe during transit. Ideal for mailing documents, catalogs, or small parcels, this envelope provides a secure and practical solution for both business and personal use. Its size makes it versatile for various packaging needs while offering peace of mind that your items will be protected.