Mailers & Envelopes

SELECTION EXPERT ADVICE

Rigid vs Flexible Mailers
MORE INFO
Corrugated mailer boxes provide structure and protection for items that cannot be bent or compressed in transit. Poly and padded mailers work well for soft goods, clothing, and flexible items where keeping the shipment lightweight is the primary cost driver.
Built-In Protection Levels
MORE INFO
Bubble-lined mailers add a cushioning layer for fragile or delicate items without requiring additional packing materials inside the package. For documents and flat goods that do not need padding, flat and paper mailers are the more cost-effective choice.
Closure Type and Packing Speed
MORE INFO
Peel-and-seal closures reduce packing time significantly on high-volume fulfillment lines. For operations processing hundreds of orders per shift, the closure method on your mailer has a real cumulative impact on throughput and labor cost over the course of a workday.

Need help choosing a mailer?

Pick the right mailer for your product weight and protection level

Use these buying guides to choose between poly and bubble mailers, and decide when to use a box instead.

Mailers Guide → Poly vs bubble vs rigid mailers Bubble Mailer Size Guide → Standard sizes 000 through 7 explained Mailer vs Box Selector → When a mailer is enough and when you need a box
Overview

1,487 mailers and envelopes: spiral wound mailing tubes with caps, white and kraft literature mailers, bubble and poly mailers and packing list pouches. Sizes run from 2 to 24 inches with pack counts of 10 to 1,000 shown on each listing. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

Buying path

Buy Mailers & Envelopes by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

Save the SKU or product link for repeat purchasing and support questions.

Larger orders

For pallet, recurring, or mixed-SKU needs, send support the details before placing a large order.

What to check first

  • Usable inside size
  • Padding or material
  • Closure type
  • Case quantity
Common wrong-order risk: Forgetting item thickness. A mailer that fits flat dimensions can still be too tight once the product is packed.
Compare mailer vs box -> Contact support for larger orders -> Read the mailers guide -> View products below ->
IN STOCK Speed up your mailroom with these 10 x 13
Envelopes & Mailers

10x13 Kraft Self-Seal Envelopes 500/Case

PN: EN1061

10 x 13 in 28 lb. Paper Stock 500 PER CASE
$208.75 / CASE
IN STOCK Speed up your mailroom with 9 x 12
Envelopes & Mailers

9x12 Kraft Self-Seal Envelopes 500/Case

PN: EN1060

9 x 12 in 28 lb. Paper Stock 500 PER CASE
$168.57 / CASE
IN STOCK Speed up your mailroom with our 6x9
Envelopes & Mailers

6x9 28 lb Kraft Self-Seal Envelopes 500/Case

PN: EN1068

6 x 9 in 28 lb. Paper Stock 500 PER CASE
$98.80 / CASE
IN STOCK Speed up mailroom operations with these self-seal kraft envelopes that require no moisture or adhesive tape. Constructed from durable 28 lb. paper stock, these 12 x 15.5
Envelopes & Mailers

12x15.5 28 lb Kraft Redi-Seal Envelopes 500/Case

PN: EN1045

12 x 15 1/2 in 28 lb. Paper Stock 500 PER CASE
$342.55 / CASE
IN STOCK Cut mailroom prep time with 15x10 Kraft Redi-Seal envelopes–no water needed, just fold, press, and mail. Constructed from durable 28 lb. paper stock to withstand shipping. Sold by the case: 250 envelopes per order.
Envelopes & Mailers

15x10 28 lb Kraft Redi-Seal Envelopes 250/Case

PN: EN1054

15 x 10 in 28 lb. Paper Stock 250 PER CASE
$167.28 / CASE
IN STOCK Eliminate sealing delays with Kraft Redi-Seal envelopes that require zero moisture–just fold, press, and ship. These durable 28 lb. paper stock envelopes measure 9.5
Envelopes & Mailers

9.5x12.5 Kraft Redi-Seal Envelopes 500/Case

PN: EN1043

9 1/2 x 12 1/2 in 28 lb. Paper Stock 500 PER CASE
$198.80 / CASE
IN STOCK Speed up mail preparation with these durable 7.5x10.5
Envelopes & Mailers

7.5x10.5 28 lb Kraft Redi-Seal Envelopes 1000/Case

PN: EN1050

7 1/2 x 10 1/2 in 28 lb. Paper Stock 1000 PER CASE
$328.21 / CASE
IN STOCK Professional-grade #7 kraft padded mailers designed for e-commerce brands shipping merchandise, apparel, and fragile items. Fiber padding absorbs shock while puncture-resistant kraft material protects contents–no additional cushioning needed. Sold by the case of 50.
Envelopes & Mailers

14.25x20 #7 Kraft Padded Mailers 50/Case

PN: B811

14 1/4 x 20 in Fiber Padding 50 PER CASE
$72.72 / CASE
IN STOCK Professional-grade kraft padded mailers measuring 19
Envelopes & Mailers

19x12.5 #6 Kraft Padded Mailers 50/Case

PN: B810

19 x 12.5 in Fiber Padding 50 PER CASE
$60.93 / CASE
IN STOCK Premium 10x5
Envelopes & Mailers

10x5 #00 Kraft Padded Mailers 250/Case

PN: B802

10 x 5 in Fiber Padding 250 PER CASE
$90.04 / CASE
IN STOCK Professional kraft padded mailers sized 8
Envelopes & Mailers

8x4 #000 Kraft Padded Mailers 500/Case

PN: B801

8 x 4 in Fiber Padding 500 PER CASE
$154.09 / CASE
IN STOCK Protect oversized documents and printed items with our 24x36
Envelopes & Mailers

24x36 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1088

24 x 36 in 28 lb. Paper Stock 100 PER CASE
$257.83 / CASE
IN STOCK Heavy-duty 24x30
Envelopes & Mailers

24x30 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1087

24 x 30 in 28 lb. Paper Stock 100 PER CASE
$250.47 / CASE
IN STOCK Protect oversized documents and printed materials with these 27 x 22
Envelopes & Mailers

27x22 28 lb Kraft Jumbo Envelopes 100/Case

PN: EN1086

27 x 22 in 28 lb. Paper Stock 100 PER CASE
$109.20 / CASE
IN STOCK Protect and ship oversized documents and printed materials with confidence using these 23 x 18
Envelopes & Mailers

23x18 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1085

23 x 18 in 28 lb. Paper Stock 100 PER CASE
$90.78 / CASE
IN STOCK Protect oversized prints and documents with these durable 22 x 17
Envelopes & Mailers

22x17 28 lb Kraft Jumbo Envelopes 100/Case

PN: EN1084

22 x 17 in 28 lb. Paper Stock 100 PER CASE
$71.54 / CASE
IN STOCK Heavy-duty 20x16 kraft jumbo envelopes designed for oversized printed materials and flat storage. Ungummed flaps enable cost-effective reuse, while 28 lb. paper stock ensures durability in transit. Order by the case of 100 for maximum efficiency.
Envelopes & Mailers

20x16 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1083

20 x 16 in 28 lb. Paper Stock 100 PER CASE
$72.86 / CASE
IN STOCK Ship oversized documents, prints, and flat items with our 20 x 15
Envelopes & Mailers

20x15 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1082

20 x 15 in 28 lb. Paper Stock 100 PER CASE
$67.18 / CASE
IN STOCK Ship oversized documents, catalogs, and printed materials with Packrift's 14 x 18
Envelopes & Mailers

14x18 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1081

14 x 18 in 28 lb. Paper Stock 100 PER CASE
$58.28 / CASE
IN STOCK Protect oversized documents, prints, and catalogs with these 12.5 x 18.5
Envelopes & Mailers

12.5x18.5 28 lb Kraft Ungummed Jumbo Envelopes 100/Case

PN: EN1080

12 1/2 x 18 1/2 in 28 lb. Paper Stock 100 PER CASE
$50.79 / CASE
IN STOCK Professional-grade 15.5
Envelopes & Mailers

15.5x12 28 lb Kraft Gummed Envelopes 250/Case

PN: EN1024

15 1/2 x 12 in 28 lb. Paper Stock 250 PER CASE
$109.23 / CASE
IN STOCK 11.5 x 14.5
Envelopes & Mailers

11.5x14.5 28 lb Kraft Gummed Envelopes 250/Case

PN: EN1012

11 1/2 x 14 1/2 in 28 lb. Paper Stock 250 PER CASE
$120.55 / CASE
IN STOCK Heavy-duty 9.5x12.5
Envelopes & Mailers

9.5x12.5 28 lb Kraft Gummed Envelopes 500/Case

PN: EN1035

9 1/2 x 12 1/2 in 28 lb. Paper Stock 500 PER CASE
$142.91 / CASE
IN STOCK Professional-grade 9x12
Envelopes & Mailers

9x12 28 lb Kraft Gummed Envelopes 1000/Case

PN: EN1022

9 x 12 in 28 lb. Paper Stock 1000 PER CASE
$231.66 / CASE
IN STOCK Professional-grade kraft gummed envelopes in 9.5
Envelopes & Mailers

9.5x6.5 28 lb Kraft Gummed Envelopes 2500/Case

PN: EN1034

9 1/2 x 6.5 in 28 lb. Paper Stock 2500 PER CASE
$439.62 / CASE
IN STOCK Heavily gummed 9x6 kraft envelopes deliver a reliably secure seal for your mailroom operations. Made from strong 28 lb. paper stock with opaque construction to protect contents from view. Ships as a case of 2,500 units–the cost-efficient choice for high-volume mailers.
Envelopes & Mailers

9x6 28 lb Kraft Gummed Envelopes 2500/Case

PN: EN1020

9 x 6 in 28 lb. Paper Stock 2500 PER CASE
$430.20 / CASE
IN STOCK Secure, professional kraft gummed envelopes built for high-volume mailrooms and shipping operations. Heavy-duty 28 lb. paper stock with opaque construction prevents content visibility, while heavily gummed flaps ensure tamper-proof seals every time. Bulk case of 5,000 units delivers cost-effective mailing solutions.
Envelopes & Mailers

6.5x3.5 28 lb Kraft Gummed Envelopes 5000/Case

PN: EN1031

6 1/2 x 3.5 in 28 lb. Paper Stock 5000 PER CASE
$673.62 / CASE
IN STOCK Kraft gummed envelopes with heavy-duty adhesive flaps for a tamper-proof seal. Made from strong 28 lb. paper stock with opaque material that protects contents from view. Sold as a full case of 5000 envelopes for maximum value and convenience.
Envelopes & Mailers

6 x 3 3/8 in 28 lb Kraft Gummed Envelopes 5000/Case

PN: EN1038

6 x 3 3/8 in 28 lb. Paper Stock 5000 PER CASE
$592.80 / CASE
IN STOCK Secure your small items with these professional-grade kraft gummed envelopes featuring heavily gummed flaps and durable 28 lb. paper stock. Sized at 5.5
Envelopes & Mailers

5.5x3.125 28 lb Kraft Gummed Envelopes 5000/Case

PN: EN1030

5 1/2 x 3.125 in 28 lb. Paper Stock 5000 PER CASE
$509.38 / CASE
IN STOCK Professional-grade kraft gummed envelopes measuring 4 1/4
Envelopes & Mailers

4 1/4 x 2 1/2 in 28 lb Kraft Gummed Envelopes 5000/Case

PN: EN1029

4 1/4 x 2 1/2 in 28 lb. Paper Stock 5000 PER CASE
$377.00 / CASE
IN STOCK Heavily gummed kraft envelopes deliver a secure, tamper-evident seal every time. Made from durable 28 lb. paper stock with opaque finish to protect contents. Buy by the case (5,000 units) for maximum cost efficiency on mailroom and bulk mailing needs.
Envelopes & Mailers

3.5x2.25 28 lb Kraft Gummed Envelopes 5000/Case

PN: EN1028

3 1/2 x 2.25 in 28 lb. Paper Stock 5000 PER CASE
$356.63 / CASE
IN STOCK Professional-grade 12 x 15.5
Envelopes & Mailers

12x15.5 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1009

12 x 15 1/2 in 28 lb. Woven Paper 500 PER CASE
$230.20 / CASE
IN STOCK 11.5 x 14.5
Envelopes & Mailers

11.5x14.5 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1008

11 1/2 x 14 1/2 in 28 lb. Woven Paper 500 PER CASE
$235.95 / CASE
IN STOCK 10x15
Envelopes & Mailers

10x15 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1007

10 x 15 in 28 lb. Woven Paper 500 PER CASE
$204.97 / CASE
IN STOCK 10x13
Envelopes & Mailers

10x13 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1006

10 x 13 in 28 lb. Woven Paper 500 PER CASE
$152.43 / CASE
IN STOCK Heavy-duty 12x10 kraft clasp envelopes built for reuse and durability. Reinforced metal clasps and secure gummed flap ensure documents stay protected during shipping. Each case includes 500 envelopes of 28 lb. woven kraft paper–the cost-effective solution for high-volume mailroom operations.
Envelopes & Mailers

12x10 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1019

12 x 10 in 28 lb. Woven Paper 500 PER CASE
$211.42 / CASE
IN STOCK These durable 9.5x12.5
Envelopes & Mailers

9.5x12.5 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1005

9 1/2 x 12 1/2 in 28 lb. Woven Paper 500 PER CASE
$164.45 / CASE
IN STOCK Heavy-duty 28 lb. woven kraft clasp envelopes built for repeated use and secure sealing. Reinforced metal clasps withstand rough handling and multiple ship cycles. Dimensions 9.25
Envelopes & Mailers

9.25x14.5 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1018

9 1/4 x 14 1/2 in 28 lb. Woven Paper 500 PER CASE
$260.47 / CASE
IN STOCK Heavy-duty 9x12
Envelopes & Mailers

9x12 28 lb Kraft Clasp Envelopes 500/Case

PN: EN1004

9 x 12 in 28 lb. Woven Paper 500 PER CASE
$127.50 / CASE
IN STOCK Heavy-duty 28 lb. woven kraft clasp envelopes sized 9.5 x 6.5
Envelopes & Mailers

9.5x6.5 28 lb Kraft Clasp Envelopes 1000/Case

PN: EN1002

9 1/2 x 6.5 in 28 lb. Woven Paper 1000 PER CASE
$246.13 / CASE
IN STOCK Heavy-duty 6x9 kraft clasp envelopes with reinforced metal clasps for maximum reusability and cost savings. Made from durable 28 lb. woven paper with a gummed flap for a permanent seal. Each case contains 1000 envelopes–the mailroom standard for businesses shipping documents and packages securely.
Envelopes & Mailers

6x9 28 lb Kraft Clasp Envelopes 1000/Case

PN: EN1001

6 x 9 in 28 lb. Woven Paper 1000 PER CASE
$220.13 / CASE
IN STOCK Heavy-duty 28 lb. woven kraft clasp envelopes with reinforced metal clasps for maximum reusability and cost savings. Secure gummed flap design ensures permanent seals for shipping compliance. Bulk case of 1,000 units sized 6 3/8
Envelopes & Mailers

6 3/8 x 4 in 28 lb Kraft Clasp Envelopes Reusable 1000/Case

PN: EN1014

6 3/8 x 4 in 28 lb. Woven Paper 1000 PER CASE
$387.61 / CASE
IN STOCK Professional-grade Jiffy Rigi Bag® mailers with laminated kraft fiberboard construction that eliminates the need for additional stiffeners. High-strength self-seal flap ensures contents stay secure while resisting bending, folding, and creasing. Order by the case–75 units ready to ship.
Envelopes & Mailers

14.5x18.5 Kraft Self-Seal Rigid Mailers 75/Case

PN: B826

14 1/2 x 18 1/2 in Laminated Fibreboard 75 PER CASE
$202.07 / CASE
IN STOCK Professional-grade 15x12.5 kraft rigid mailers designed for e-commerce brands shipping valuable products. Laminated fiberboard construction eliminates bending and creasing without additional stiffeners. High-strength self-seal flap with tear strip for fast, secure sealing in cases of 100.
Envelopes & Mailers

15x12.5 Kraft Self-Seal Rigid Mailers 100-Pack

PN: B825

15 x 12.5 in Laminated Fibreboard 100 PER CASE
$210.93 / CASE
IN STOCK Professional-grade 14 x 10.5
Envelopes & Mailers

14x10.5 Kraft Self-Seal Rigid Mailers 150/Case

PN: B824

14 x 10.5 in Laminated Fibreboard 150 PER CASE
$223.42 / CASE
IN STOCK Professional-grade 9.5x13
Envelopes & Mailers

9.5x13 Kraft Self-Seal Rigid Mailers 200/Case

PN: B823

9 1/2 x 13 in Laminated Fibreboard 200 PER CASE
$241.02 / CASE
IN STOCK Premium 8.5 x 13
Envelopes & Mailers

8.5x13 Kraft Self-Seal Rigid Mailers 200/Case

PN: B822

8 1/2 x 13 in Laminated Fibreboard 200 PER CASE
$221.65 / CASE
IN STOCK Ship with confidence using these 8.5
Envelopes & Mailers

8.5x10.5 #2 Kraft Self-Seal Rigid Mailers 250/Case

PN: B821

8 1/2 x 10 1/2 in Laminated Fibreboard 250 PER CASE
$242.42 / CASE

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