Security envelope | from 40 to 57

Ampac C4 high security envelopes are tamper evident, white, and available in a pack of 20. Measuring 220x305mm with opaque security to protect sensitive documents. Secure your mail with these reliable envelopes.

White bubble-lined envelopes, size 5, with internal dimensions of 205x245mm, ideal for protecting items during shipping.

Durable, extra‑strong polythene envelope measuring 595 × 430 mm, opaque for privacy and protection. Ideal for shipping documents or items that need a robust barrier. Pack of 100 units.

This is a pack of 100 strong polythene mailing envelopes, measuring 440 x 320mm and are opaque. They are made from extra strong polythene, providing excellent protection for mail.

Perfect for heavier weight items - Catalogues, Files, Printouts, Textiles, Lever Arch Files - Secure peel & seal closure. Larger sizes feature double seal - Lightweight. Saves on postage costs - Weatherproof, burstproof, tear and puncture resistant - Acce