Best Blake Envelopes of 2025

The Blake Self Seal Envelopes are perfect for your everyday office mailings. With their self-seal feature, you can save time and effort, ensuring your documents are securely enclosed without the need for additional adhesives. The security opaque design keeps your contents private, providing peace of mind when sending sensitive information. Additionally, these envelopes come in a convenient pack of 100, allowing you to handle large volumes of mail easily. Their versatile size of 110 x 220 mm makes them suitable for a variety of documents.

The Blake C5 Envelopes are perfect for your everyday mailing needs. With a self-seal feature, you can quickly and securely close envelopes without the hassle of wetting a flap. Their C5 size is ideal for A5 documents, making them versatile for various correspondence. You will also appreciate the 100gsm paper weight, which provides sturdiness and a professional feel. Easy to use, these envelopes streamline your mailing process, saving you time and effort.

The Blake Envelopes Pack offers a secure peel and seal closure, making it easy for you to seal your correspondence without any fuss. Crafted from high-quality 100 gsm paper, these envelopes are perfect for all your business needs, ensuring a professional appearance. You can also print directly onto them, which is ideal for custom branding or addressing. Additionally, the window size of 3.5 × 9 centimetres allows for clear visibility of your letters or brochures, enhancing your communication efforts.

The Blake C5 Envelopes are perfect for your everyday mailing needs. These pocket peel and seal envelopes measure 229 x 162 mm, making them ideal for sending invoices, letters, and brochures. With a pack of 100, you will always have enough on hand for your correspondence. Crafted from quality 100 gsm paper, these envelopes provide a sturdy and professional appearance, ensuring your documents arrive in excellent condition.

The Blake Envelopes Pack offers a secure peel and seal closure, ensuring ease of use and added security for your important documents. Made from high-quality 100 gsm paper, these envelopes are perfect for business correspondence, letters, brochures, and more. You will appreciate their suitability for printing, allowing for custom designs and branding. With this pack of 500, you'll have plenty of envelopes ready for any occasion, enhancing your organisational efficiency.

Blake C5 Envelopes are designed to enhance your mailing experience. Made from quality 120 gsm FSC Certified Paper, these envelopes provide a sturdy option for your correspondence. The attractive pack ensures that your envelopes are stored safely and conveniently. With their blue opaque design, you can rest assured that your sensitive information remains completely private. Additionally, the secure Peel & Seal closure makes sealing them effortless, saving you time and offering added security for your important documents.

The Blake Pocket Envelopes are high-quality 100gsm white envelopes that are perfect for your everyday mailing needs. The easy-to-use self-seal feature ensures that you can securely seal your items without any hassle. These envelopes are also suitable for printing, making them a great choice for personalised correspondence or branded materials. With a generous pack of 250, you will have plenty of envelopes to handle all your mailing tasks efficiently.

The Blake C6 Envelopes are designed for everyday use, featuring an easy-to-use self-seal closure that saves you time and effort when sending out correspondence. Made from high-quality 90 gsm paper, these envelopes provide a professional touch for your business letters, brochures, and more. Their size is perfect for a variety of documents, ensuring your items are well-protected. With a pack of 1000, you'll have plenty of envelopes on hand for all your mailing needs.

The Blake C5 Envelopes are designed for convenience and ease of use. Featuring a self-seal closure, you can securely seal your letters and documents without the need for additional glue or tape. Made from high-quality 90 gsm paper, these envelopes provide a professional appearance, ideal for business correspondence and brochures. The handy pack of 50 ensures you have plenty on hand for all your mailing needs. Additionally, the C5 size is perfect for A4 sheets folded in half, making it versatile for various uses.

The Blake Self Seal Envelopes are an excellent choice for anyone needing to send invoices, letters, or brochures securely. Their blue opaque printed interior ensures extra security and confidentiality, giving you peace of mind that your important documents remain private. The easy-to-use self-seal closure saves you time and effort, making the process more convenient. With a pack of 1000, you'll have plenty of envelopes on hand for all your mailing needs.