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 9x12 5 Mil Self-Seal Poly Mailers 100-Pack B873100PK - alias listing
Envelopes & Mailers

9x12 2.5 Mil Self-Seal Poly Mailers 100-Pack B873100PK

PN: B873100PK

9 x 12 in 2.5 Mil Polyethylene 100 PER CASE
$21.59 / CASE
IN STOCK 6x9 Self-Seal Poly Mailers 100-Pack B871100PK - alias listing
Envelopes & Mailers

6x9 Self-Seal Poly Mailers 100-Pack B871100PK

PN: B871100PK

6 x 9 in 2.5 Mil Polyethylene 100 PER CASE
$16.68 / CASE
IN STOCK 16x10.5 #5 Reinforced Mailers 500/Case B888 - alias listing
Envelopes & Mailers

16x10.5 #5 Reinforced Mailers 500/Case B888

PN: B888

16 x 10.5 in Heavy-Duty Nylon Fibers 500 PER CASE
$382.67 / CASE
IN STOCK 19x12.5 #6 Reinforced Mailers 250/Case B889 - alias listing
Envelopes & Mailers

19x12.5 #6 Reinforced Mailers 250/Case B889

PN: B889

19 x 12.5 in Heavy-Duty Nylon Fibers 250 PER CASE
$247.90 / CASE
IN STOCK 9.5x14.25 #4 Reinforced Mailers 500/Case B887 - alias listing
Envelopes & Mailers

9.5x14.25 #4 Reinforced Mailers 500/Case B887

PN: B887

9 1/2 x 14 1/4 in Heavy-Duty Nylon Fibers 500 PER CASE
$334.83 / CASE
IN STOCK 8.5x14.5 #3 Reinforced Mailers 500/Case B886 - alias listing
Envelopes & Mailers

8.5x14.5 #3 Reinforced Mailers 500/Case B886

PN: B886

8 1/2 x 14 1/2 in Heavy-Duty Nylon Fibers 500 PER CASE
$293.08 / CASE
IN STOCK 12 x 7 1/4 in #1 Nylon Reinforced Mailers 1000/Case B884 - alias listing
Envelopes & Mailers

12 x 7 1/4 in #1 Nylon Reinforced Mailers 1000/Case B884

PN: B884

12 x 7 1/4 in Heavy-Duty Nylon Fibers 1000 PER CASE
$414.58 / CASE
IN STOCK 12x8.75 #2 Reinforced Mailers 1000/Case B885 - alias listing
Envelopes & Mailers

12x8.75 #2 Reinforced Mailers 1000/Case B885

PN: B885

12 x 8.75 in Heavy-Duty Nylon Fibers 1000 PER CASE
$506.00 / CASE
IN STOCK 10 3/4 x 13 in 2.8 Mil Gold Metallic Self-Seal Mailers 250/Case GFM1013GD - alias listing
Envelopes & Mailers

10 3/4 x 13 in 2.8 Mil Gold Metallic Self-Seal Mailers 250/Case GFM1013GD

PN: GFM1013GD

10 3/4 x 13 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$180.44 / CASE
IN STOCK 10.75x13 2.8 Mil Red Metallic Self-Seal Mailers 250/Case GFM1013R - alias listing
Envelopes & Mailers

10.75x13 2.8 Mil Red Metallic Self-Seal Mailers 250/Case GFM1013R

PN: GFM1013R

10 3/4 x 13 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$180.44 / CASE
IN STOCK 10.75x13 2.8 Mil Blue Metallic Self-Seal Mailers 250/Case GFM1013B - alias listing
Envelopes & Mailers

10.75x13 2.8 Mil Blue Metallic Self-Seal Mailers 250/Case GFM1013B

PN: GFM1013B

10 3/4 x 13 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$180.44 / CASE
IN STOCK 9.5x12.75 2.8 Mil Silver Peel & Seal Metallic Mailers 250/Case GFM0912S - alias listing
Envelopes & Mailers

9.5x12.75 2.8 Mil Silver Peel & Seal Metallic Mailers 250/Case GFM0912S

PN: GFM0912S

9 1/2 x 12 3/4 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$148.60 / CASE
IN STOCK 18x51 4 Mil Self-Seal Poly Mailers 25/Case LPM1851 - alias listing
Envelopes & Mailers

18x51 4 Mil Self-Seal Poly Mailers 25/Case LPM1851

PN: LPM1851

18 x 51 in Polyethylene 25 PER CASE
$52.05 / CASE
IN STOCK 9.5x12.75 2.8 Mil Gold Self-Seal Metallic Mailers 250/Case GFM0912GD - alias listing
Envelopes & Mailers

9.5x12.75 2.8 Mil Gold Self-Seal Metallic Mailers 250/Case GFM0912GD

PN: GFM0912GD

9 1/2 x 12 3/4 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$148.60 / CASE
IN STOCK 18x48 4 Mil White Self-Seal Poly Mailers 25/Case LPM1848 - alias listing
Envelopes & Mailers

18x48 4 Mil White Self-Seal Poly Mailers 25/Case LPM1848

PN: LPM1848

18 x 48 in Polyethylene 25 PER CASE
$45.30 / CASE
IN STOCK 13x45 2.5 Mil Self-Seal Poly Mailers 50/Case LPM1345 - alias listing
Envelopes & Mailers

13x45 2.5 Mil Self-Seal Poly Mailers 50/Case LPM1345

PN: LPM1345

13 x 45 in 2.5 Mil Polyethylene 50 PER CASE
$65.74 / CASE
IN STOCK 9.5x45 2.5 Mil White Self-Seal Poly Mailers 50/Case LPM945 - alias listing
Envelopes & Mailers

9.5x45 2.5 Mil White Self-Seal Poly Mailers 50/Case LPM945

PN: LPM945

9 1/2 x 45 in 2.5 Mil Polyethylene 50 PER CASE
$48.07 / CASE
IN STOCK 8.5x33 2.5 Mil White Self-Seal Poly Mailers 100/Case LPM833 - alias listing
Envelopes & Mailers

8.5x33 2.5 Mil White Self-Seal Poly Mailers 100/Case LPM833

PN: LPM833

8 1/2 x 33 in 2.5 Mil Polyethylene 100 PER CASE
$71.28 / CASE
IN STOCK 27x22 Kraft Chipboard Tab Lock Stayflats Mailers 50/Case RM27 - alias listing
Envelopes & Mailers

27x22 Kraft Chipboard Tab Lock Stayflats Mailers 50/Case RM27

PN: RM27

27 x 22 in .036 Chipboard 50 PER CASE
$124.37 / CASE
IN STOCK 6x39 2.5 Mil White Self-Seal Poly Mailers 100/Case LPM639 - alias listing
Envelopes & Mailers

6x39 2.5 Mil White Self-Seal Poly Mailers 100/Case LPM639

PN: LPM639

6 x 39 in 2.5 Mil Polyethylene 100 PER CASE
$69.07 / CASE
IN STOCK 27x20 Kraft Chipboard Tab Lock Stayflats Mailers 50/Case RM12 - alias listing
Envelopes & Mailers

27x20 Kraft Chipboard Tab Lock Stayflats Mailers 50/Case RM12

PN: RM12

27 x 20 in .036 Chipboard 50 PER CASE
$105.47 / CASE
IN STOCK 18x13 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM6 - alias listing
Envelopes & Mailers

18x13 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM6

PN: RM6

18 x 13 in .036 Chipboard 100 PER CASE
$73.71 / CASE
IN STOCK 15x12.75 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM4 - alias listing
Envelopes & Mailers

15x12.75 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM4

PN: RM4

15 x 12.75 in .036 Chipboard 100 PER CASE
$67.51 / CASE
IN STOCK 11x16 Kraft Tab Lock Rigid Stayflats Mailers 100/Case RM8 - alias listing
Envelopes & Mailers

11x16 Kraft Tab Lock Rigid Stayflats Mailers 100/Case RM8

PN: RM8

11 x 16 in .036 Chipboard 100 PER CASE
$71.07 / CASE
IN STOCK 11x13.5 Kraft Tab Lock Stayflats Mailers 100/Case RM3 - alias listing
Envelopes & Mailers

11x13.5 Kraft Tab Lock Stayflats Mailers 100/Case RM3

PN: RM3

11 x 13 1/2 in .036 Chipboard 100 PER CASE
$58.73 / CASE
IN STOCK 9 3/4 x 12 1/4 in Kraft Stayflats Tab Lock Mailers 100/Case RM5 - alias listing
Envelopes & Mailers

9 3/4 x 12 1/4 in Kraft Stayflats Tab Lock Mailers 100/Case RM5

PN: RM5

9 3/4 x 12 1/4 in .036 Chipboard 100 PER CASE
$48.23 / CASE
IN STOCK 8x6 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM1 - alias listing
Envelopes & Mailers

8x6 Kraft Chipboard Tab Lock Stayflats Mailers 100/Case RM1

PN: RM1

8 x 6 in .036 Chipboard 100 PER CASE
$29.12 / CASE
IN STOCK 18x24 Kraft Self-Seal Stayflats Plus Mailers 50/Case RM11PSK - alias listing
Envelopes & Mailers

18x24 Kraft Self-Seal Stayflats Plus Mailers 50/Case RM11PSK

PN: RM11PSK

18 x 24 in .028 Chipboard 50 PER CASE
$97.83 / CASE
IN STOCK 27x20 Kraft Self-Seal Stayflats Plus Mailers 50/Case RM12PSK - alias listing
Envelopes & Mailers

27x20 Kraft Self-Seal Stayflats Plus Mailers 50/Case RM12PSK

PN: RM12PSK

27 x 20 in .028 Chipboard 50 PER CASE
$129.58 / CASE
IN STOCK 9.75x12.25 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM5K - alias listing
Envelopes & Mailers

9.75x12.25 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM5K

PN: RM5K

9 3/4 x 12 1/4 in .028 Chipboard 100 PER CASE
$54.60 / CASE
IN STOCK 12 3/4 x 15 in Kraft Self-Seal Stayflats Plus Mailers 100-Pack RM4K - alias listing
Envelopes & Mailers

12 3/4 x 15 in Kraft Self-Seal Stayflats Plus Mailers 100-Pack RM4K

PN: RM4K

12 3/4 x 15 in .028 Chipboard 100 PER CASE
$77.96 / CASE
IN STOCK 9x11.5 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM2K - alias listing
Envelopes & Mailers

9x11.5 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM2K

PN: RM2K

9 x 11 1/2 in .028 Chipboard 100 PER CASE
$52.78 / CASE
IN STOCK 7x9 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM10K - alias listing
Envelopes & Mailers

7x9 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM10K

PN: RM10K

7 x 9 in .028 Chipboard 100 PER CASE
$48.55 / CASE
IN STOCK 6x8 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM1K - alias listing
Envelopes & Mailers

6x8 Kraft Self-Seal Stayflats Plus Mailers 100/Case RM1K

PN: RM1K

6 x 8 in .028 Chipboard 100 PER CASE
$35.49 / CASE
IN STOCK 20x14.25 #7 Kraft Self-Seal Padded Mailers 25-Pack B811SS25PK - alias listing
Envelopes & Mailers

20x14.25 #7 Kraft Self-Seal Padded Mailers 25-Pack B811SS25PK

PN: B811SS25PK

20 x 14.25 in Fiber Padding 25 PER CASE
$49.88 / CASE
IN STOCK 6x6 Kraft Self-Seal Stayflats Plus Mailers 200/Case RM9K - alias listing
Envelopes & Mailers

6x6 Kraft Self-Seal Stayflats Plus Mailers 200/Case RM9K

PN: RM9K

6 x 6 in .028 Chipboard 200 PER CASE
$58.24 / CASE
IN STOCK 19x12.5 #6 Kraft Self-Seal Padded Mailers 25-Pack B810SS25PK - alias listing
Envelopes & Mailers

19x12.5 #6 Kraft Self-Seal Padded Mailers 25-Pack B810SS25PK

PN: B810SS25PK

19 x 12.5 in Fiber Padding 25 PER CASE
$33.81 / CASE
IN STOCK 9.5x14.5 #4 Kraft Self-Seal Padded Mailers 25-Pack B807SS25PK - alias listing
Envelopes & Mailers

9.5x14.5 #4 Kraft Self-Seal Padded Mailers 25-Pack B807SS25PK

PN: B807SS25PK

9 1/2 x 14 1/2 in Fiber Padding 25 PER CASE
$23.69 / CASE
IN STOCK 10.5x16 #5 Kraft Self-Seal Padded Mailers 25-Pack B809SS25PK - alias listing
Envelopes & Mailers

10.5x16 #5 Kraft Self-Seal Padded Mailers 25-Pack B809SS25PK

PN: B809SS25PK

10 1/2 x 16 in Fiber Padding 25 PER CASE
$37.53 / CASE
IN STOCK 6x10 #0 Kraft Self-Seal Padded Mailers 25-Pack B803SS25PK - alias listing
Envelopes & Mailers

6x10 #0 Kraft Self-Seal Padded Mailers 25-Pack B803SS25PK

PN: B803SS25PK

6 x 10 in Fiber Padding 25 PER CASE
$20.62 / CASE
IN STOCK 7.25x12 #1 Kraft Self-Seal Padded Mailers 25-Pack B804SS25PK - alias listing
Envelopes & Mailers

7.25x12 #1 Kraft Self-Seal Padded Mailers 25-Pack B804SS25PK

PN: B804SS25PK

7 1/4 x 12 in Fiber Padding 25 PER CASE
$26.79 / CASE
IN STOCK 19x12.5 #6 Kraft Self-Seal Padded Mailers 50/Case B810SS - alias listing
Envelopes & Mailers

19x12.5 #6 Kraft Self-Seal Padded Mailers 50/Case B810SS

PN: B810SS

19 x 12.5 in Fiber Padding 50 PER CASE
$62.08 / CASE
IN STOCK 9.5x14.5 #4 Kraft Self-Seal Padded Mailers 100/Case B807SS - alias listing
Envelopes & Mailers

9.5x14.5 #4 Kraft Self-Seal Padded Mailers 100/Case B807SS

PN: B807SS

9 1/2 x 14 1/2 in Fiber Padding 100 PER CASE
$69.65 / CASE
IN STOCK 10.5x16 #5 Kraft Self-Seal Padded Mailers 100/Case B809SS - alias listing
Envelopes & Mailers

10.5x16 #5 Kraft Self-Seal Padded Mailers 100/Case B809SS

PN: B809SS

10 1/2 x 16 in Fiber Padding 100 PER CASE
$94.12 / CASE
IN STOCK 14.5x8.5 #3 Kraft Self-Seal Padded Mailers 100/Case B806SS - alias listing
Envelopes & Mailers

14.5x8.5 #3 Kraft Self-Seal Padded Mailers 100/Case B806SS

PN: B806SS

14 1/2 x 8.5 in Fiber Padding 100 PER CASE
$73.79 / CASE
IN STOCK 7.25x12 #1 Kraft Self-Seal Padded Mailers 100/Case B804SS - alias listing
Envelopes & Mailers

7.25x12 #1 Kraft Self-Seal Padded Mailers 100/Case B804SS

PN: B804SS

7 1/4 x 12 in Fiber Padding 100 PER CASE
$54.51 / CASE
IN STOCK 6x10 #0 Kraft Self-Seal Padded Mailers 250/Case B803SS - alias listing
Envelopes & Mailers

6x10 #0 Kraft Self-Seal Padded Mailers 250/Case B803SS

PN: B803SS

6 x 10 in Fiber Padding 250 PER CASE
$112.20 / CASE
IN STOCK 6x9 28 lb Kraft Self-Seal Envelopes 500/Case EN1068 - alias listing
Envelopes & Mailers

6x9 28 lb Kraft Self-Seal Envelopes 500/Case EN1068

PN: EN1068

6 x 9 in 28 lb. Paper Stock 500 PER CASE
$98.80 / CASE

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