10 Best flap envelopes of 2026

Save up to 79% off

1

Quality Park
Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, Great for Filing, Storing or Mailing Documents, 28 lb Brown Kraft, 100 per Box (QUA37890)
Main highlights

Heavy Duty Kraft Envelopes
Quality Park 9x12 clasp envelopes feature double prong metal clasps, reinforced eyelets, and gummed seals, providing durability for home, office, and school use.

Ideal for Mailing Large Items
Perfect for sending large lay-flat items without folds or creases, such as contracts, catalogs, registration packets, and 8x10 photos.

Praised for Durability
Customers appreciate the strong clasps and the ability to handle frequent use without breaking, making them reliable for everyday office tasks.
Key specs
- size:9 x 12 Inches
- color:Light Brown
- shape:Rectangular
- material:Brown kraft
- closure:Gummed
9.7

Exceptional

Our Rating

9.9
worth the money

9.7
Durability

9.5
Simple to use
How do we rank?

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Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
2

Quality Park
Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, Great for Filing, Storing or Mailing Documents, 28 lb Brown Kraft, 100 per Box (QUA37890)
Main highlights

Heavy Duty Kraft Envelopes
Quality Park 9x12 clasp envelopes feature double prong metal clasps, reinforced eyelets, and gummed seals, providing durability for home, office, and school use.

Ideal for Mailing Large Items
Perfect for sending large lay-flat items without folds or creases, such as contracts, catalogs, registration packets, and 8x10 photos.

Praised for Durability
Customers appreciate the strong clasps and the ability to handle frequent use without breaking, making them reliable for everyday office tasks.
Key specs
- size:9 x 12 Inches
- color:Light Brown
- shape:Rectangular
- material:Brown kraft
- closure:Gummed
9.5

Excellent

Our Rating

9.9
worth the money

9.7
Durability

9.5
Simple to use
3

Ribetween

50 Packs of A7 Envelopes for Invitation, White 5x7 Envelopes with V Flap, Great for Graduation, Invitation, Baby Shower, Wedding and RSVP Cards (White)
9.2

Excellent

Our Rating
4

Quality Park

Quality Park 10" x 13" Clasp Envelopes, Heavy 32 lb Brown Kraft, Gummed Flap, 100/Box (QUA37797)
9.1

Excellent

Our Rating
5

Janvale

V-flap Kraft Envelopes, 50 Pack, 4 x 6 Inch, A4 Envelopes, Card Envelopes, Brown Envelopes, Kraft Paper Envelopes for Invitations, Postcard Envelopes, Water Base Adhesive, Gummed Flap
9.0

Excellent

Our Rating
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6

Janvale

V-flap Kraft Envelopes, 50 Pack, 4 x 6 Inch, A4 Envelopes, Card Envelopes, Brown Envelopes, Kraft Paper Envelopes for Invitations, Postcard Envelopes, Water Base Adhesive, Gummed Flap
8.9

Very Good

Our Rating
7

VeriPap

A7 Envelopes 30 Pack 5x7 V-Flap Thick Invitation Envelopes for 5x7 Photos,Cards, Birthday, Weddings, Graduations, Announcements, Baby Shower 5.28 "x 7.13" (White, A7)
8.8

Very Good

Our Rating
8

Mead
Mead #10 Envelopes, Letter Size, 4-1/8" x 9-1/2", Security Printed Lining for Privacy, Gummed Closure, Windowless, White All-Purpose for Home & Office Mail, 40 Count (75214)

79% Off
Main highlights

Privacy Protection
Security lining maintains document confidentiality during mailing.

Ideal for Standard Mail
Perfect for mailing standard letter size documents efficiently.

Customer Favorite Feature
Customers appreciate the durable, high-quality paper and secure closure.
Key specs
- size:40/Box
- color:White
- shape:Rectangular
- material:Paper
- closure:Gummed
8.7

Very Good

Our Rating
9

Mead
Mead #10 Envelopes, Letter Size, 4-1/8" x 9-1/2", Security Printed Lining for Privacy, Gummed Closure, Windowless, White All-Purpose for Home & Office Mail, 40 Count (75214)

79% Off
Main highlights

Privacy Protection
Security lining maintains document confidentiality during mailing.

Ideal for Standard Mail
Perfect for mailing standard letter size documents efficiently.

Customer Favorite Feature
Customers appreciate the durable, high-quality paper and secure closure.
Key specs
- size:40/Box
- color:White
- shape:Rectangular
- material:Paper
- closure:Gummed
8.6

Very Good

Our Rating
10

Ouzoustate

Ouzoustate A7 Envelopes 100 Pack White 5x7 V Flap Invitation Envelopes for 5x7 Photos,Cards, Birthday, Weddings, Graduations, Announcements, Baby Shower 5.28 "x 7.13"(white)
8.5

Good

Our Rating

10 Best flap envelopes of 2026

1

Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, Great for Filing, Storing or Mailing Documents, 28 lb Brown Kraft, 100 per Box (QUA37890)

9.9

9.7

9.5

How do we rank?

How do we rank?

Analyzing top stores

2

Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, Great for Filing, Storing or Mailing Documents, 28 lb Brown Kraft, 100 per Box (QUA37890)

9.9

9.7

9.5

3

50 Packs of A7 Envelopes for Invitation, White 5x7 Envelopes with V Flap, Great for Graduation, Invitation, Baby Shower, Wedding and RSVP Cards (White)

4

Quality Park 10" x 13" Clasp Envelopes, Heavy 32 lb Brown Kraft, Gummed Flap, 100/Box (QUA37797)

5

V-flap Kraft Envelopes, 50 Pack, 4 x 6 Inch, A4 Envelopes, Card Envelopes, Brown Envelopes, Kraft Paper Envelopes for Invitations, Postcard Envelopes, Water Base Adhesive, Gummed Flap

6

V-flap Kraft Envelopes, 50 Pack, 4 x 6 Inch, A4 Envelopes, Card Envelopes, Brown Envelopes, Kraft Paper Envelopes for Invitations, Postcard Envelopes, Water Base Adhesive, Gummed Flap

7

A7 Envelopes 30 Pack 5x7 V-Flap Thick Invitation Envelopes for 5x7 Photos,Cards, Birthday, Weddings, Graduations, Announcements, Baby Shower 5.28 "x 7.13" (White, A7)

8

Mead #10 Envelopes, Letter Size, 4-1/8" x 9-1/2", Security Printed Lining for Privacy, Gummed Closure, Windowless, White All-Purpose for Home & Office Mail, 40 Count (75214)

9

Mead #10 Envelopes, Letter Size, 4-1/8" x 9-1/2", Security Printed Lining for Privacy, Gummed Closure, Windowless, White All-Purpose for Home & Office Mail, 40 Count (75214)

10

Ouzoustate A7 Envelopes 100 Pack White 5x7 V Flap Invitation Envelopes for 5x7 Photos,Cards, Birthday, Weddings, Graduations, Announcements, Baby Shower 5.28 "x 7.13"(white)

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