Due to unprecedented supply chain issues and high demand, some orders may take longer than usual. We apologize for the delays and are doing our best to ship orders as quickly as possible. Please contact us if you have any questions regarding production time. 

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#9 Envelopes

#9 Return Envelopes | #9 Security Envelopes

Mail checks with #9 Envelopes! The #9 Envelope, measuring 3 7/8 x 8 7/8 inches, is ideal for mailing checks, payments, and other standard size documents. Protect your sensitive information with a security envelope! Security envelopes feature a security tint printed on the inside that will block prying eyes from seeing the contents. Save time with a #9 Window Envelope. No need to address every envelope - simply print the address on your document to show through the convenient poly-film window. Ideal for business reply use.

#9 Envelopes fit easily into the #10 envelope, the standard business size, and are perfect for use as a return envelope. Include them with your invoices or statements so your recipient can easily send back a payment or check.

Personalize your #9 envelopes with a company logo, address, unique messaging, or other custom design! Want to see your envelopes before ordering? Request a FREE PDF proof today! Choose the right envelope, upload your artwork, and fill in the proper text fields. Tell us a bit about your design and our expert designers will whip up a proof so you can be sure you're getting exactly what you're looking for.