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RELYCO offers envelopes crafted with precision and care to meet your business requirements and align with your brand identity. We provide the highest-quality, best-performing and most secure business envelopes for various mailing needs and inter-office applications.

When it comes to mailing, having the right envelope can make all the difference. Whether you need a secure option for confidential documents, a stylish envelope that catches the eye or a straightforward choice for everyday business correspondence, RELYCO has you covered.

Our business envelopes in #9 and #10 sizes provide reliable solutions for your daily mailing requirements. They are always in stock and ready for immediate shipment.

Choose our secure business envelopes as your go-to for safeguarding sensitive documents. With features like the innovative security tint to prevent unauthorized viewing of contents, these envelopes are ideal for mailing payroll checks, invoices, statements and other private documents.

The unique window positioning adds an extra layer of security, while our confidential and tamper-indicating envelopes ensure your sealed documents remain secure from start to finish. Customize your business envelopes with different window sizes and placements.