Product Details

Product Details

Big projects call for packaging that can keep up, and JAM Paper White Tyvek® 18lb 10 x 13 x 2 inch Expansion Envelopes with Peel and Seal, these mailing envelopes are well suited for catalogs, reports, files, brochures, and multi-page document sets that are too bulky for standard flat envelopes. Crafted from durable 18lb Tyvek, these white envelopes resist tears, scuffs, and moisture, helping protect contents during mailing, storage, and frequent handling in busy workspaces. The crisp white color keeps the look clean and polished, making these Tyvek mailing envelopes useful for offices, schools, mailrooms, home filing, and creative supply organization. A peel and seal closure keeps packing fast and simple, so JAM Paper delivers a practical expansion envelope that combines roomy storage, lightweight strength, and dependable day to day performance.

  • Height: 13 inches
  • Width: 10 inches
  • Finish: Smooth
  • Material: Tyvek
  • Paper weight: 18
  • Closure: Peel & Seal
  • Flap: Straight Flap
  • Envelope size: 10 x 15
  • 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.