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Assorted envelopes in various sizes and colors | Flipcost.com

Envelopes & Mail Supplies

640 products

Showing 1 - 24 of 640 products

Manage Your Mailing Needs

Simplify your mailing process with our wide range of envelopes and mail supplies, designed to meet all your needs. From self-sealing envelopes to tear-resistant mailers, our products are built for both durability and security, ensuring your letters and packages arrive safely. Whether you're sending personal notes or handling business correspondence, we have the right solution for you. Browse our collection today and find everything you need to manage your mail with ease.

Showing 1 - 24 of 640 products
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Lightweight Hand Letter Opener, 9", Silver
Universal® Universal® Lightweight Hand Letter Opener, 9", Silver
$0.62 $2.72
In stock
Save 49%
Serrated Blade Hand Letter Opener, 8", BlackWestcott® Serrated Blade Hand Letter Opener, 8", Black
Westcott® Westcott® Serrated Blade Hand Letter Opener, 8", Black
$3.17 $6.18
In stock
Save 99%
Security Tint Business Envelopes, #6 3/4, Monarch Flap, Gummed Closure, 3.63 x 6.5, White, 80/Box
Mead® Mead® Security Tint Business Envelopes, #6 3/4, Monarch Flap, Gummed Closure, 3.63 x 6.5, White, 80/Box
$3.22 $398.42
In stock
Save 83%
Letter Slitter Hand Letter Opener with Concealed Blade, 2.5", White, 3/Pack
Universal® Universal® Letter Slitter Hand Letter Opener with Concealed Blade, 2.5", White, 3/Pack
$1.48 $8.84
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Poly Bubble Mailers, #5, Barrier Bubble Cushion, Redi-Seal Adhesive Closure, 10.5 x 15, White, 25/PackPoly Bubble Mailers, #5, Barrier Bubble Cushion, Redi-Seal Adhesive Closure, 10.5 x 15, White, 25/Pack Quality Park™ Flipcost
Quality Park™ Quality Park™ Poly Bubble Mailers, #5, Barrier Bubble Cushion, Redi-Seal Adhesive Closure, 10.5 x 15, White, 25/Pack
$34.35 $37.50
In stock
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Peel Seal Strip Security Tint Business Envelope, #6 3/4, Square Flap, Self-Adhesive Closure, 3.63 x 6.5, White, 100/BoxUniversal® Peel Seal Strip Security Tint Business Envelope, #6 3/4, Square Flap, Self-Adhesive Closure, 3.63 x 6.5, White, 100/Box
Universal® Universal® Peel Seal Strip Security Tint Business Envelope, #6 3/4, Square Flap, Self-Adhesive Closure, 3.63 x 6.5, White, 100/Box
$2.12 $8.00
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Redi-Strip Security Tinted Envelope, #10, Commercial Flap, Redi-Strip Heat-Resistant Closure, 4.13 x 9.5, White, 30/Box
Quality Park™ Quality Park™ Redi-Strip Security Tinted Envelope, #10, Commercial Flap, Redi-Strip Heat-Resistant Closure, 4.13 x 9.5, White, 30/Box
$4.95 $11.49
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TRU RED™ EXPANDING WALLET, STRING/BUTTON CLOSURE, 1.25" EXPANSION, 1 SECTION, LETTER SIZE, CLEAR, 5/PACK TRU RED™ FlipcostTRU RED™ Poly String and Button Storage Envelope, Letter Size, Clear, 5/Pack
TRU RED™ TRU RED™ Poly String and Button Storage Envelope, Letter Size, Clear, 5/Pack
$2.21 $6.84
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EverTec Curbside Recyclable Padded Mailer, #2, Kraft Paper, Self-Adhesive Closure, 12 x 9, Brown, 100/CartonPregis® EverTec Curbside Recyclable Padded Mailer, #2, Kraft Paper, Self-Adhesive Closure, 12 x 9, Brown, 100/Carton
Pregis® Pregis® EverTec Curbside Recyclable Padded Mailer, #2, Kraft Paper, Self-Adhesive Closure, 12 x 9, Brown, 100/Carton
$46.76 $112.06
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Curby Mailer Self-Sealing Recyclable Mailer, Paper Padding, Self-Adhesive, #2, 11.38 x 9.5, 30/Cartonipg® Curby Mailer Self-Sealing Recyclable Mailer, Paper Padding, Self-Adhesive, #2, 11.38 x 9.5, 30/Carton
ipg® ipg® Curby Mailer Self-Sealing Recyclable Mailer, Paper Padding, Self-Adhesive, #2, 11.38 x 9.5, 30/Carton
$19.96 $59.50
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Peel Seal Strip Business Envelope, #A9, Square Flap, Self-Adhesive Closure, 5.74 x 8.75, White, 100/BoxUniversal® Peel Seal Strip Business Envelope, #A9, Square Flap, Self-Adhesive Closure, 5.74 x 8.75, White, 100/Box
Universal® Universal® Peel Seal Strip Business Envelope, #A9, Square Flap, Self-Adhesive Closure, 5.74 x 8.75, White, 100/Box
$4.37 $13.84
In stock
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Zippered Wallets/Cases, Leatherette PU, 11 x 6, Blue, 2/PackUniversal® Zippered Wallets/cases, Leatherette Pu, 11 X 6, Blue, 2/pack
Universal® Universal® Zippered Wallets/cases, Leatherette Pu, 11 X 6, Blue, 2/pack
$7.16 $10.96
In stock
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Hand Letter Opener with Wood Handle, 9" Flipcost FlipcostHand Letter Opener with Wood Handle, 9" Flipcost Flipcost
Westcott® Westcott® Hand Letter Opener with Wood Handle, 9"
$5.17 $7.55
In stock
Save 28%
Poly String and Button Interoffice Envelopes, Open-Side (Horizontal), 9.75 x 11.63, Clear, 5/PackSmead Poly String and Button Interoffice Envelopes, Open-Side (Horizontal), 9.75 x 11.63, Clear, 5/Pack
Smead™ Smead Poly String and Button Interoffice Envelopes, Open-Side (Horizontal), 9.75 x 11.63, Clear, 5/Pack
$6.60 $9.11
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Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.13 x 9.5, White, 100/BoxUniversal® Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.13 x 9.5, White, 100/Box
Universal® Universal® Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.13 x 9.5, White, 100/Box
$4.07 $24.00
In stock
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Envelope Moistener with Adhesive, 50 mL, GreenQuality Park™ Envelope Moistener with Adhesive, 50 mL, Green
Quality Park™ Quality Park™ Envelope Moistener with Adhesive, 50 mL, Green
$3.16 $5.74
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Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.25 x 9.63, White, 500/BoxUniversal® Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.25 x 9.63, White, 500/Box
Universal® Universal® Peel Seal Strip Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.25 x 9.63, White, 500/Box
$17.45 $46.32
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Happy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Black, 12/PackHappy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Black, 12/Pack
Happy Mail Happy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Black, 12/Pack
$8.52 $11.99
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United States Postal Service First-Class Forever Stamps, U.S. Flag, 100/RollUnited States Postal Service First-Class Forever Stamps, U.S. Flag, 100/Roll
United States Postal Service United States Postal Service First-Class Forever Stamps, U.S. Flag, 100/Roll
$148.55 $188.58
In stock
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United States Postal Service Global Forever Stamps, Floral, 10 Stamps/Sheet, 2 Sheets/PackUnited States Postal Service Global Forever Stamps, Floral, 10 Stamps/Sheet, 2 Sheets/Pack
United States Postal Service United States Postal Service Global Forever Stamps, Floral, 10 Stamps/Sheet, 2 Sheets/Pack
$67.16 $85.25
In stock
United States Postal Service First-Class Forever Stamps, Holiday, 20/BookUnited States Postal Service First-Class Forever Stamps, Holiday, 20/Book
United States Postal Service United States Postal Service First-Class Forever Stamps, Holiday, 20/Book
$40.22
In stock
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United States Postal Service First-Class Forever Stamps, U.S. Flag, 20 Stamps/Book, 5 Books/PackUnited States Postal Service First-Class Forever Stamps, U.S. Flag, 20 Stamps/Book, 5 Books/Pack
United States Postal Service United States Postal Service First-Class Forever Stamps, U.S. Flag, 20 Stamps/Book, 5 Books/Pack
$148.55 $188.58
In stock
Save 21%
United States Postal Service First-Class Forever Stamps, U.S. Flag, 20/BookUnited States Postal Service First-Class Forever Stamps, U.S. Flag, 20/Book
United States Postal Service United States Postal Service First-Class Forever Stamps, U.S. Flag, 20/Book
$29.72 $37.72
In stock
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Happy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Pink, 12/PackHappy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Pink, 12/Pack
Happy Mail Happy Mail Self-Sealing Bubble Mailer, 8.5 x 11, Pink, 12/Pack
$8.52 $11.99
In stock