The Tamper Evident Medium Mail Pouch with Gusset is designed for sending larger amounts of documents and bulkier items. The zip pulls across the top of the pouch to completely close and contain contents. Once closed, it is sealed using one of our tamper evident security seals. If the seal is broken when the carrier reaches its destination the recipient can see that the security has been compromised. They feature VersaShield™ Antimicrobial Technology, protecting the internal/external material, locking chamber and zip puller from the colonisation of bacteria.