Choose professionalism and trust! When you send your correspondence in a blue envelope, you immediately convey a sense of professionalism and reliability to the recipient. That’s why blue envelopes are a particularly popular choice for business correspondence. At the same time, many recipients associate this shade with the freshness of the sea or a bright blue sky, which helps your mail stand out from the crowd in a positive way.
With its generous dimensions of 114 x 229 mm, this DIN C6/5 envelope (DIN Lang+) offers ample space for larger cards or DIN A4-sized letterheads folded in half lengthwise. The front features a precisely positioned address window that ensures the recipient’s address is perfectly legible in accordance with DIN standards and speeds up your mailing process.
These blue window envelopes are specially optimized for machine processing, which significantly streamlines the workflow when handling large volumes of mail. To seal them by hand, simply moisten the narrow gummed strip on the flap and press firmly. At Kuvertwelt, you benefit from attractive volume discounts—ensuring that your professional image remains cost-effective even for large-scale mailings.
