Some messages need a special setting to make the full impact. Our 155 x 155 mm envelopes offer exactly that: an unusual format combined with a deep, sophisticated color. With their square shape, these dark gray envelopes clearly stand out from everyday mail and give your letters a modern look.
Whether for invitation cards, thank-you notes, or business mailings designed to leave a lasting impression—the 155 x 155 mm format is the perfect choice for anyone who values individuality and style.
Made from 80 g/m² paper, these square envelopes remain pleasantly lightweight, while the opaque material reliably protects the contents. The water-activated adhesive closure ensures easy handling and a secure seal. If you’re looking for this design in a different size, take a look at our smaller square envelopes. We also offer matching DIN C5 envelopes for your DIN A5 documents or folded A4 letters. You can purchase additional square envelopes here to expand your selection.
Take advantage of our flexibility when placing your order: We’ll deliver your new envelopes in exact quantities, starting with just one. This way, you’ll receive exactly the amount you need for your project, without any excess inventory.
