Secure shipping, seamless expansion: gusset envelopes you can depend on Tyvek envelopes are specially designed for those who need a little extra space for their mail, providing an efficient and secure way to send larger documents without the need for multiple envelopes. These C4 (A4) envelopes are ideal for mailing standard-sized documents, letters, and certificates, providing a secure and professional solution for your correspondence needs. Crafted from a blend of tyvek and polyethylene, these envelopes offer a balanced solution, providing both strength and lightweight convenience for document storage. Perfect for storing sensitive paperwork, our envelopes feature a convenient peel & seal closure system for easy access. With a grammage of 55 gsm, they provide the strength and durability needed to protect your documents during transit. Ideal for archival materials or projects that require a bit more space, keeping contents safe and well-presented. Take the next step in efficient mailing, shop now!
