Letter envelopes  (1,152 offers of 5,358,750 product items)

Ideal for cards, invitations and other letters, these bright Pillar Box Red C5 envelopes are made from high quality 120gsm paper and feature a simple, secure peel and seal closure. These C5 envelop...

Evolve Recycled Wallet S/S White 90GM BX1000 110x220

Evolve Rec Wallet S/S White 90GM Win BX1000 110x220

Pocket P/S White 100GM BX250 305x127

These New Guardian envelopes provide superior protection and strength with durable, lightweight 80gsm paper. Suitable for A4 documents folded once or unfolded A5 documents, the C5 envelopes feature...

These New Guardian envelopes provide superior protection and strength with durable, lightweight 80gsm paper and self-seal closure. These DL wallet envelopes are suitable for A5 sheets folded once, ...

These New Guardian envelopes provide superior protection and strength with durable, lightweight 80gsm paper and a convenient address window measuring 39 x 93mm. With self-seal closure, these DL wal...

These Plus Fabric envelopes feature durable 120gsm bright white paper and a simple peel and seal closure with Power-Tac adhesion for a quick, strong seal. The envelopes also feature a convenient ea...

Constructed from strong 120gsm paper, these Plus Fabric DL wallet envelopes feature a bright white exterior and an opaque blue interior that helps keep the contents confidential. The strong Power-T...

Wallet S/S White 110GM BX500 110x220

Board Back Pocket P/S Manilla 120GM BX100 450x324

Made from bright 90gsm white paper, these Postmaster envelopes have been designed for, and tested on, all known makes of mailing machine, from desktop to full scale. They feature an oversized forma...

**Creat Col Wlt P/S Chalk White 120GM Win BX500 162x229

Ideal for any size of mailing machine, from desktop to full scale, these Postmaster envelopes feature an oversized format for easier insertion of letters and a gummed flap designed for automatic se...

Made from bright 90gsm white paper, these Postmaster envelopes have been designed for, and tested on, all known makes of mailing machine, from desktop to full scale. They feature an oversized forma...