1-800-388-5122 Careers Contact Us Search Menu Specialty Papers You are here Home > Envelope Products > Specialty Papers Protective and Specialty Paper Envelopes Shiny, tough, secure, or sustainable. No matter your need, we’ve got you (and your mail contents) covered with our specialty envelope paper options. Learn about all of our custom direct mail products and services here. Featured Blog Start with the basics by learning about the different types of envelope papers available in our blog. Featured Product Spotlight Metallic paper envelopes can lend your direct mail campaign shine and communicate importance. Learn about them in our product spotlight here. Sustainable & Recycled Paper Options Maintain the professional look of your mailing with an ecologically sound paper choice. Protec™ Envelopes Send your confidential mailings with confidence in a tear and moisture resistant, light-weight Protec™ envelope. Custom Printed Tyvek® Envelopes Trust the toughness and strength of a Tyvek® envelope, even in the most unforgiving conditions. Metallic Paper Let your marketing message shine on a metallic paper envelope (that comes in a variety of colors and patterns!). Privacy Defender Envelopes & Sleeves Block the flow of RF energy and protect your customer’s information with a Defender envelope or sleeve. Blog Posts Related to Specialty Papers Envelope Basics: Paper By Erin Moloney NOVEMBER 14, 2017 You Complete Me: How Life Unfolds Reminds Us of the Importance of Paper By Erin Moloney MARCH 27, 2018 Prepare for a Tighter Envelope Paper Market By Andrew Weed JUNE 19, 2019 Specialty Papers Gallery Envelope Products Print Marketing Envelope Know-How About Tension Blog Privacy Policy Site Map Terms and Conditions Tension Headquarters 819 E. 19th Street Kansas City, MO 64108-1781 1-800-388-5122 Tension Packaging & Automation Tension Corporation © 2021 Tension Envelope Corporation. All rights reserved.