Order Security Envelopes and get FREE shipping! Perfect for sending checks, invoices, statements or other sensitive information. Make sure your private information stays private with security envelopes. Choose from a variety of popular envelope sizes, including #6 3/4, #8 5/8, #9, #10. Each envelope features a security tint pattern printed on the inside of the envelope. This pattern darkens paper stock and hides text so the contents of the envelope remain hidden from view. Ideal for sending private personal or business information such as financial documents, medical records, checks, bank and tax statements, or legal documents.
Select from Regular or Security Window envelope options. For added protection, check out our FDIC security tint options. Business envelopes with an inside security tint feature a standard gum or self-seal. Choose the Printed option for further customization. Save time when mailing, and include company name, return address, logo, or other information of your business or organization. Also ideal for creating return envelopes, making it quick and easy for recipients to send back payments or other sensitive information.