Menu
Search
Advertising Disclosure

10 Best flap envelopes of 2026

Save up to 39% off
  • Best Choice

    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)
    Quality Park
    9.7
    Exceptional

    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)

    18% Off
    • Reinforced Eyelets:Yes
    • Envelope Size:9 x 12 inches
    • Quantity:100 per box
    • Material:28 lb. brown kraft envelope stock
    • Closure Type:Double prong metal clasps with gummed flaps
  • Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
    Careful review Our team ensures quality, value, and fit based on real user feedback
    Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
    Real users impact
    • Thousands of users trust our site daily
    • Based on millions of stores and reviews
    • Shoppers influence our rankings
  • Value for Money

    2

    Amazon Basics Clasp Kraft Envelopes for Documents, Gummed Mailing Envelope, 9" x 12", 100-Pack
    Amazon Basics
    9.5
    Excellent

    Amazon Basics Clasp Kraft Envelopes for Documents, Gummed Mailing Envelope, 9" x 12", 100-Pack

    16% Off

  • 3

    Mead Envelopes, Letter Size 9" x 12", Press-It Seal-It Self Adhesive Closure, Brown Kraft All-Purpose 24-lb Paper, Manila Mailing Envelopes, 25 Count (76086)
    Mead
    9.4
    Excellent

    Mead Envelopes, Letter Size 9" x 12", Press-It Seal-It Self Adhesive Closure, Brown Kraft All-Purpose 24-lb Paper, Manila Mailing Envelopes, 25 Count (76086)

    • Quantity:25 envelopes per pack
    • Material:Brown Kraft 24-lb Paper
    • Type:Letter Size Envelope
    • Closure:Self-adhesive (Press-It Seal-It)
    • Size:9" x 12"

  • 4

    50 Pack 4x6 Envelopes White,Contour Flap A4 Envelope,Premium 120gsm Thick Paper Invitation Envelopes for Back to School,Birthday,Wedding RSVP Cards,Photos,Postcards,Greeting Cards,Mailing
    Apprabbr
    9.2
    Excellent

    50 Pack 4x6 Envelopes White,Contour Flap A4 Envelope,Premium 120gsm Thick Paper Invitation Envelopes for Back to School,Birthday,Wedding RSVP Cards,Photos,Postcards,Greeting Cards,Mailing

  • 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
    Janvale
    9.1
    Excellent

    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

  • See Today’s Deals & Prices

  • 6

    Quality Park 6 x 9 Clasp Envelopes, Clasp and Gummed Closures for Storing or Mailing, 28 lb Kraft Paper, 100 per Box (QUA37855)
    Quality Park
    8.9
    Very Good

    Quality Park 6 x 9 Clasp Envelopes, Clasp and Gummed Closures for Storing or Mailing, 28 lb Kraft Paper, 100 per Box (QUA37855)

    17% Off

  • 7

    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)
    Mead
    8.8
    Very Good

    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)

    39% Off
    • Quantity:40 envelopes
    • Material:20 lb. white paper
    • Type:N/A
    • Closure:N/A
    • Size:N/A

  • 8

    Zzrywuty #10 Letter Size Mailing Envelopes for Business, 100pcs Self Seal Windowless Security Envelopes 4-1/8 x 9-1/2 Inch White 24LB Paper
    Zzrywuty
    8.7
    Very Good

    Zzrywuty #10 Letter Size Mailing Envelopes for Business, 100pcs Self Seal Windowless Security Envelopes 4-1/8 x 9-1/2 Inch White 24LB Paper

  • 9

    ESSENTIAL #1 500 Piece Coin Envelopes 2.25" x 3.5" with Gummed Flap
    ESSENTIAL
    8.4
    Good

    ESSENTIAL #1 500 Piece Coin Envelopes 2.25" x 3.5" with Gummed Flap

    • product dimensions: 2.25 x 3.5 x 0.02 inches
    • color: Yellow
    • shape: Rectangular
    • item weight: 1.54 pounds
    • item model number: EP-CME-YE500

  • 10

    Homrelaxy 120 Pcs #1 Small Coin Envelopes 2.25" x 3.5" with Gummed Flap
    Homrelaxy
    8.3
    Good

    Homrelaxy 120 Pcs #1 Small Coin Envelopes 2.25" x 3.5" with Gummed Flap