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Ambassador Envelope Co.
6705 Keaton Corporate Pkwy
O'Fallon, MO 63368
Ph: (636) 477-1300
Fax: (636) 477-7648
Toll Free: (800) 325-4510

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Expansion Envelopes

Often referred to as expandable or gusseted, expansion envelopes are ideal for shipping bulky materials like books, video cassettes, samples, and other items. They often serve as an alternative to a shipping box or carton. Numerous sizes are available in both open-side and open-end styles and in Tyvek®, Brown Kraft, and White Kraft materials. These envelopes feature a V-Bottom style with either regular gum or "Zip Stick" seals and can be custom printed with your logo or marketing message. Windows can also be added to these envelopes.

Tyvek open-end expansion envelope

Tyvek Open-End Expansion Envelopes

Open-end catalog style envelopes feature a "Zip Stick" seal and are available in both standard weight (14 lb.) and heavy weight (18 lb.) in a wide variety of sizes.


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Standard Weight (14 lb.) 9 x 12 x 1
9 x 12 x 2
10 x 13 x 1-1/2
10 x 13 x 2
10 x 15 x 2
12 x 15 x 3
12 x 16 x 2
Heavy Weight (18 lb.) 4-1/2 x 9 1/2 x 2
5 x 11 x 2
5 x 11 x 3
5 x 12 x 2
5 x 12 x 3
8 x 12 x 3
9 x 12 x 1
9 x 12 x 2
10 x 12 x 1-1/2
10 x 12 x 2
10 x 12 x 3
10 x 12 x 4
10 x 13 x 1
10 x 13 x 1-1/2
10 x 13 x 2
10 x 15 x 2
12 x 15 x 2
12 x 15 x 3
12 x 16 x 2
12 x 16 x 4

Tyvek open-side expansion envelope

Tyvek Open-Side Expansion Envelopes


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Open-side booklet style envelopes feature a "Zip Stick" seal and are available in both standard (14 lb.) and heavy weight (18 lb.) in a wide variety of sizes.

Standard Weight (14 lb.) 10 x 13 x 2
10 x 15 x 2
12 x 16 x 2
Heavy Weight (18 lb.) 9 x 12 x 1
9 x 12 x 2
10 x 12 x 1-1/2
10 x 12 x 2
10 x 12 x 4
10 x 13 x 1
10 x 13 x 2
10 x 15 x 2
12 x 16 x 2
12 x 16 x 4
12 x 18 x 2

Kraft open-end expansion envelope

Kraft Open-End Expansion Envelopes

Made from durable Kraft paper, these open-end catalog envelopes come in a wide variety of sizes, are available in both white and brown paper, and feature either a regular gum seal or "Zip Stick" seal.

Kraft Open-End (Sub 40) 4-1/2 x 91/2 x 2
4-1/2 x 91/2 x 3
4-1/2 x 11 x 3
5 x 11 x 2
5 x 11 x 3
5 x 11 x 4
5 x 12 x 3
5 x 12 x 4
6 x 9-1/2 x 3
8 x 12 x 3
9 x 12 x 2
9 x 12 x 3
9-1/2 x 13 x 2
10 x 13 x 1-1/2
10 x 13 x 2
10 x 13 x 3
10 x 15 x 2
10 x 15 x 3
10 x 15 x 4
11 x 15 x 2
12 x 15 x 1-1/2
12 x 15 x 3

Kraft open-side expansion envelope

Kraft Open-Side Expansion Envelopes

Made from durable Kraft paper, these open-side catalog envelopes come in a wide variety of sizes, are available in both white and brown paper, and feature either a regular gum seal or "Zip Stick" seal.

Kraft Open-Side (Sub 40) 9 x 12 x 2
9 x 12 x 3
10 x 12 x 2
10 x 12 x 3
10 x 13 x 2
10 x 15 x 2

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Ambassador Envelope Co.