Product Details

Product Details

Big first-class mail gets a bright boost with JAM Paper White Tyvek® 14lb 12 x 15 1/2 inch Open End First Class Envelopes with Peel and Seal, made for oversized documents, reports, catalogs, booklets, and flat paperwork that should stay crisp from start to finish. This roomy mailing envelope pairs a clean white look with the lightweight durability of Tyvek®, helping resist tears, moisture, and everyday scuffs while keeping contents smooth, neat, and ready to send. The 12 x 15 1/2 inch size is a smart fit for offices, schools, studios, and home workspaces that need extra space for larger materials without folding or crowding the contents inside. Open end construction keeps packing simple and efficient, while the peel & seal closure creates a quick, secure close with no extra glue or moisture. From first class business mail and organized document delivery to promotional packets and storage-ready paperwork, these versatile JAM Paper envelopes bring dependable protection, flexible use, and a polished look to busy everyday mailing.

  • Height: 15 1/2 inches
  • Width: 12 inches
  • Finish: Smooth
  • Material: Tyvek
  • Paper weight: 14
  • Closure: Peel & Seal
  • Flap: Straight Flap
  • Envelope size: 12 x 15 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.