Product Details

Product Details

Bright mail starts here with JAM Paper White Tyvek® 14lb 4 1/8 x 9 1/2 inch Open End Envelopes with Peel and Seal, a smart choice for business mail, invoices, statements, and direct mail pieces that need a clean look and added durability. Sized for standard #10-style mailing needs, these durable mailing envelopes combine a crisp white finish with the lightweight strength of Tyvek®, helping resist tearing, moisture, and everyday handling better than many basic paper options. The open end design makes packing simple, while the peel and seal closure creates a fast, secure finish without extra moisture or glue. This versatile style works well in offices, studios, schools, and home workspaces where polished presentation and dependable protection both matter. From everyday correspondence to promotional mailers and organized document delivery, these envelopes keep mailing practical, creative, and ready to go with the reliable performance JAM Paper is known for.

  • Height: 9 1/2 inches
  • Width: 4 1/8 inches
  • Finish: Smooth
  • Material: Tyvek
  • Paper weight: 14
  • Closure: Peel & Seal
  • Flap: Straight Flap
  • Envelope size: #10 - 4 1/8 x 9 1/2
  • Envelope seam: Center
  • Envelope opening: Open End
Turnaround Time

Processing time 

  • Standard Plain Processing Time

    1 - 2 Days

  • Custom Print Order Processing

    5 - 7 Days

Shipping/transit time is based on the shipping method selected at checkout and begins once the order has completed processing and ships. Visit our shipping policy page for more information.

Return Policy

Returns, exchanges or refunds are accepted when received back within 30 days of purchase. 

Please note that custom-made products are uniquely tailored to your specifications, and as such, we are unable to accept returns for these items.

Visit our Returns page for more information on how initiate a return.

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FAQs

Where can I learn about custom orders and sample availability?

For custom orders, please fill out our free quote request form.

View our Samples FAQ

How can I better understand stationery sizes and types?

To help navigate your stationery options (and our recommendations), check out our comprehensive guides on paper weights and envelope sizes, including free, downloadable templates compatible with Microsoft Word.

Visit the Size Guide

How can I reorder items?

Reordering is a breeze! Simply sign in to your account and click the "Reorder" button.

Can I change or cancel my order?

If you are looking to change or cancel your order before processing, please reach out to us and we would be happy to help you.

Once your order has been processed for shipping—or has already shipped—it cannot be canceled. You may refuse the delivery, and the order will be subject to our return policy.

Reseller program payment authorization help

If there’s a reseller program credit card authorization issue, your order will be placed on hold, and our team will contact you immediately to resolve the problem so your envelopes can ship as quickly
as possible.