High Security Envelopes

High security envelopes - perfect for when you need a tough, durable envelope

We stock an excellent range of high security envelopes for when you need a durable envelope. Ideal for sending awkward shaped items, these envelopes are lightweight and flexible with a tear-resistant and water resistant coating to fully protect and secure the contents. Some of our envelopes are constructed from tear resistant paper substrate that will resist damage in transit or from attempted theft. Ideal for confidential documents, brochures, catalogues or mailing items of high value they feature a peel and seal closure. Our high security envelopes come in a range of sizes from C4 and C5 to B4, E4 and a range of other sizes.

See our range of other envelopes including board backed envelopes, internal envelopes, machine envelopes, other envelopes, padded bags, plain envelopes, polythene envelopes, wage envelopes and window envelopes.