Best Triplast Envelopes of 2026

The Triplast DL Self Seal envelopes come in a pack of 500, measuring 110x220mm, perfect for everyday mailing needs. They feature a blue high security pattern inside, which keeps your documents private during transit or storage, giving you peace of mind when sending confidential items. The self-seal adhesive is simple to use, removing the need for tape or glue—just fold and press to secure, saving you time and effort. Plus, these envelopes work well with most inkjet and laser printers, making them practical for home or office use.

The Triplast Document Wallets are essential for efficiently attaching important paperwork to various parcels. With an internal size of A5, they are versatile enough to suit different shipping needs, from mailing bags to wooden crates. Their quick and easy design features a clear plastic front and a self-seal paper back, allowing you to insert documents effortlessly. Made from high-grade plastic, these durable wallets protect your documents from rain and dirt, ensuring they remain readable and scannable.

The Triplast M4 Envelopes are versatile packaging solutions that transform from flat envelopes to postal boxes, allowing you to customise the depth from 1mm to 70mm. This feature is particularly useful for accommodating various items, ensuring a snug fit. The hassle-free peel and seal strip saves you time and effort during packing, eliminating the need for tape or glue. Moreover, these envelopes are crafted from durable, lightweight cardboard, providing excellent protection for your shipments while keeping postage costs down.

The Triplast Rigid Envelopes are ideal for safely sending various items such as two CDs, DVDs, children’s books, or A4 books. Made partly from recycled materials and fully recyclable, they offer an eco-friendly choice for your posting needs. The envelopes feature aggressive hot melt peel and seal strips, ensuring the flaps stay securely closed during transit, giving you peace of mind. Additionally, reinforced corner protection helps keep your items safe from damage, while the unique rigid kraft material adds extra strength to withstand rough handling.

The Triplast Rigid Cardboard Envelopes are ideal for securely posting items such as CDs and DVDs. These envelopes feature aggressive hot melt peel and seal strips, which help prevent the flaps from opening during transit, ensuring your items stay safe. They also have reinforced corner protection, offering extra security for your contents. Made partly from recycled materials and fully recyclable, these envelopes provide an eco-friendly choice without compromising on strength, thanks to their unique rigid kraft material.