Mail Security Envelopes
VOID Security Envelopes
Cash Security Envelopes
Clear Security Envelopes

Mail Security Envelopes

Single-use polythene security envelopes are available in two versions: Natural (clear see-through), or white. Both versions come with unique barcoding/numbering and tear-off receipt with duplicate numbering. They are ideal to safely store and transport personal belongings, sensitive mail and valuable assets. These bags are also available in three sizes – A3, A4 and A5.

Natural (Clear) bag colour auto-selected below.

Select colour


Bag Size

£0.206500£0.424850 exc. VAT

0.2065Exc. VAT

Product description


Our security bags are used for a wide variety of purposes, including the safe transporting of cash from organisations and businesses, the safe and secure storage of evidence and sending important or confidential documents to clients. All of our security bags have a sequential number and tear off receipt to help the auditing process of the contents. The cash in transit bags that we produce and supply are designed for the safe transport of cash. Advanced security technique such as a platinum APAC standard tamper evident line and the use of tear off receipts, means that our cash in transit bags provide the highest level of security for the safe moving and transport of coin and note denominations.


All of our security bags come with a ‘platinum’ standard security seal and provide the most secure tamper proof technology available. The tamper proof security seal protects against all known forms of tampering. The bags protect against heating and freezing by clearly displaying a ‘void’ message to demonstrate the bag has been tampered with. The security seal also clearly displays if the bag has been ripped or torn by displaying the ‘void’ security message. The high strength polythene material is extremely durable and will ensure the contents of the bag remains safe and secure. These security methods help protect against all known forms of tampering and will help ensure the contents remain safe and secure.


White or Natural (clear) versions available.

Request bulk price quote


A3 - 400x520mm
A4 - 260x400mm
A5 - 180x260mm




White and Natural (Clear)


Full customisation is available on 45,000+