Product Details

Product Details

Envelopes.com sets the standard with our #10 Double Window Envelopes (4 1/8 x 9 1/2) in pristine white. Offering the perfect blend of durability, convenience, and style, these envelopes feature a secure Redi Seal and a security tint that ensures privacy for your documents. Crafted from heavy-duty 24lb paper, these envelopes provide a robust solution for both personal and business mailing needs. The clean white finish enhances their professional look, making them ideal for important documents. Whether you’re mailing invoices, contracts, or personal letters, Envelopes.com guarantees a seamless, stylish experience with quality that stands apart from the crowd.

  • Height: 4.125 inches
  • Width: 9.5 inches
  • Finish: Smooth
  • Material: Paper
  • Paper weight: 24
  • Closure: Redi Seal
  • Flap: Straight Flap
  • Envelope size: #10 - 4 1/8 x 9 1/2
  • Envelope seam: Side
  • Security tint: Blue
  • Envelope opening: Booklet
  • Has window: Yes
  • Window position: Double Window
  • Window position dimensions: Top Window- From Left: 8/16, From Top: 12/16, From Right: 5 7/16, From Bottom: 2 7/16 Bottom Window: From Left: 8/16, From Right: 5 Inches, From Top: 2 7/16, From Bottom: 11/16
  • Window size: top window3 1/2 long 1 wide bottom window 4 long 1 1/8 wide
  • Envelope flap size: 9 3/8 by 1 1/8 wide
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.

Customize Your Order

Whether you want to promote your brand or personalize an invitation, custom printing is available for most products.

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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.