Custom Window Envelopes
Custom window envelopes stimulate action. Versatile performers for many types of businesses, display windows in Tension envelopes are available in traditional shapes and sizes, or can be tailor-made to fit your requirements.
Custom Windows: Design and Printing
Put colorful artwork and clever copy to work in Tension custom window envelopes to catch the eye of your direct mail prospect. Tested and proven by thousands of direct marketing advertisers, display windows can make an ordinary mailing a super producer.
- Well-designed display envelopes allow your offer to shine in your direct mail campaigns.
- Multiple windows on the front or back add extra appeal.
- Sealed with Solid Seal® gumming for high-performance.
Related Blog Post
Learn about how to measure a custom window envelope in this blog post.
Or, find custom window envelope design ideas in our Tension Design Group gallery.
Looking for a double window envelope? Let's have a conversation:
- Attract Attention
- Increase Visibility of Inserts
- Custom and Unusual Shapes Available
- Solid Seal® Window Gumming
- High-Speed Inserting Peformance
- Conforms to USPS Requirements
Attention Grabbing

All Eyes on the Offer

Solid Gumming

Turn Your Mailing into a Super Producer
Looking to engage consumers with your message before they open your outer envelope? Try a custom window to provide a glimpse inside and add a touch of personalization. Unusual windows or window combinations on the front and back offer consumers a sneak peak at the envelope’s content.
Hundreds of Custom Window Envelope Shapes and Sizes Available
Tension can construct your envelope, as you specify, with uniquely shaped and positioned windows. Custom windows are available in hundreds of shapes and sizes, single or multiple windows, and can be customized for your business.
Providing you with efficiency and cost savings, a single custom window envelope can serve a variety of mailings by simply changing enclosures. Put variable printing to work on the inside of your envelope, and let the recipient’s individual message shine through the window. Whether you need printed custom #10 envelopes or some other special envelope size, we can help. Contact us today.
Tension Quality for Premium Performance
Tension know-how and quality help assure that your envelopes will perform. We make sure the film for your window envelope is the right type and thickness for the job, and we use our Solid Seal® construction throughout to ensure efficient inserting and smooth throughput on postal sorting equipment.
Contact your Tension representative today for more information on putting display windows to work for your business. Need help with your envelope design? Tension Design Group can provide custom ideas to fit your mailing package and audience.