Upgrade your mailing experience with our versatile range of envelopes, catering to the diverse needs of both offices and schools. Safeguard your confidential documents with our secure envelopes, designed to provide an extra layer of protection during transit and organise your correspondence efficiently with wallet envelopes

Streamline your mailing process with window envelopes, allowing for easy identification and a professional presentation. Embrace sustainability with our eco envelopes, crafted from environmentally friendly materials to align with your sustainability goals. Facilitate express deliveries with our express post envelopes and express post satchels, ensuring your important documents reach their destination promptly.

Enhance your creative projects with our seed pockets, providing a unique and eco-friendly solution for distributing seeds or small items. Complete your mailing solutions with our pocket envelopes, offering versatility and style for a variety of mailing needs.

Explore the range of envelopes available through COS today, and elevate your mailing experience.