10 x 13 Open End Envelopes Pool Blue - Flat Document Mailers

In this review of the 10 x 13 Open End Envelopes, the bottom line is simple: these envelopes are a practical choice for anyone who needs to mail flat, bulky materials without folding. The reviewer found them particularly useful for sending catalogs, annual reports and brochures because the 10 in by 13 in size keeps documents flat and protected; they arrive in a pack of 1,000 which makes them suitable for regular corporate or tax-season mailings. The peel and press closure also speeds up assembly while providing a clean seal for professional presentation.

Key Features

• Size and fit: The 10 in x 13 in format is large enough to hold booklets, magazines and W-2 / 1099 forms without folding, preserving the document layout.
• Durable stock: The 80lb. text weight gives the envelopes a sturdy feel that resists tearing during automated or manual handling.
• Peel and press closure: The self-seal flap simplifies packing and reduces the time needed to prepare large mailings.
• Printable surface: Compatible with offset and digital presses and some home printers, so envelopes can be customized for corporate or direct mail campaigns.
• High quantity pack: The 1,000 count offers value for businesses conducting frequent mailings or for busy tax season runs.

Who It's For

These envelopes are aimed at businesses and organizations that send flat printed materials: marketing departments, accounting offices during tax season, and publishers distributing catalogs or magazines. The pack size and sturdy stock make them ideal for high-volume corporate mailings and direct mail campaigns where presentation matters.

Consumers who only need a few envelopes, or who require a specific branded color match, may want to consider smaller packs or request a sample first, since some customers report mixed reactions to the color shade.

Pros & Cons

Pros

• Large 10 in x 13 in size prevents folding of brochures and reports.
• Sturdy 80lb. text stock feels durable and professional in hand.
• Peel and press closure speeds packing and creates a neat seal.
• Printable on offset and digital presses for customized mailings.

Cons

• Color receives mixed feedback, so exact shade may vary from expectations.
• Bulk 1,000 pack may be more than needed for low-volume users.

Specifications

Our Verdict

The 10 x 13 Open End Envelopes are a sensible buy for offices and organizations that need reliable, flat mailers in volume. They combine a practical size, sturdy 80lb. stock and a convenient peel-and-press closure at an attractive per-envelope value, though buyers should be aware the pool blue shade can vary. For high-volume corporate mailings, catalogs and tax documents, these offer good utility and value.

Frequently Asked Questions

Will these envelopes hold a small booklet without folding?
Yes, the 10 in x 13 in interior fits booklets, small catalogs and folded brochures without requiring additional folding.

Can I print addresses or logos on these envelopes?
They are printable on offset and digital presses and on some home printers, making them suitable for customized corporate mailings.

Is the flap secure for mailing?
The peel and press closure provides a clean, secure seal for standard corporate and direct mailings.