Cougar Envelopes & Cougar Paper - In Many Sizes

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Order Cougar Envelopes and get FREE shipping! High-quality smooth paper envelopes in white and natural -- available in many sizes. These envelopes are made from Domtar Cougar paper, which has a smooth vellum finish. Perfect for mailing invitations to an elegant event or wedding. They are also ideal for professional business communication since they add an extra touch of sophistication. Recipients will notice how pleasant the paper feels to their touch. We offer a variety of sizes including 4 Bar, #5 3/4 Square, #9, #10, A2, A6, A7, A8 and A10. We also stock regular 8 1/2 x 11 cougar paper for stationery or general printing.

Cougar paper is a heavier weight than standard envelopes. This adds to the high-end look and feel of envelopes built with this material. The most common Cougar paper weight is 60#. If you are looking to save time during sealing, we offer A2 and A7 Cougar Envelopes with a self seal. Order custom Cougar envelopes and personalize your order with logos, addresses or artwork. You can order stationery or letterhead printed on Cougar paper, and then customize an envelope to match. See a PDF proof before printing. We want to ensure we are creating a product exactly like the one you imagined.

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Cougar Envelopes - Blank

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Cougar Envelopes - Printed

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Cougar Paper

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Invitation Envelopes

Planning a special event? We offer a large variety of invitation envelopes in many different styles, sizes, and colors. Order brightly colored envelopes and stand out from everyday mail. We offer rush and expedited shipping options so you can get your envelopes right when you need them. Shop Invitation Envelopes.

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Business Envelopes

Business envelopes are great for mailing letters, checks, invoices or marketing materials. Select from a variety of styles and sizes to find the perfect envelope for your business communication needs. Whether you're mailing a check or a catalog - we have a variety of business envelopes to get the job done. Shop Business Envelopes.

NEED HELP?

Not finding what you need? Have a question about a printed order? We would love to see if we can make your order - and life - a little bit easier.

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Cougar Envelopes and Cougar Paper Size Guidelines

Not sure what size you need? Our guide can help you pick the right envelope. As a general rule of thumb, you will want to select an envelope slightly larger than your insert, to make it easy to add and remove your item. Depending on the thickness of your insert, you may need more or less room around the item.

  • A2 - 4 3/8 x 5 3/4 - Typically used for an RSVP envelope. Fits inside an A6, A7, or larger envelope.
  • A6 - 4 3/4 x 6 1/2 - Commonly used for invitations up to 4 1/2 x 6 1/4. Fits inside an A7, A8, A9 or A10.
  • A7 - 5 1/4 x 7 1/4 - Also known as a 5x7 envelope. Most common size for invitations and cards.
  • A8 - 5 1/2 x 8 1/8 - Used as an outer envelope. Fits a card, invitation, or insert up to 5 1/4 x 8 inches.
  • A10 - 6 x 9 1/2 - Also known as a 6x9 envelope. Outer envelope which fits inserts up to 5 7/8 x 9 3/8.
  • #4 Bar - 3 5/8 x 5 1/8 - Typically used for an RSVP envelope. Fits inside a # 5 1/2 Bar or Lee Baronial.
  • #9 - 3 7/8 x 8 7/8 - Return envelope. Fits inside a #10 envelope.
  • #10 - Standard business envelope. Fits a standard size document (8 1/2" x 11").
  • 6x9 - Fits 5 7/8 x 8 7/8 insert, or an 8 1/2 x 11 document folded in half.

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