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 Professional-grade rigid mailers designed for e-commerce brands shipping lightweight products without additional stiffeners. Laminated fiberboard construction with high-strength self-seal flap protects contents from bending, creasing, and corner damage. Ready to use–simply insert items and fold.
Envelopes & Mailers

7.25x10.5 Kraft Self-Seal Rigid Mailers 250/Case

PN: B820

7 1/4 x 10 1/2 in Laminated Fibreboard 250 PER CASE
$208.26 / CASE
IN STOCK Keep internal communications organized and secure with these 15x10
Envelopes & Mailers

15x10 Kraft String Closure Inter-Department Envelopes 100/Case

PN: EN1092

15 x 10 in 28 lb. Kraft Paper 100 PER CASE
$91.48 / CASE
IN STOCK Keep internal company mail organized and compliant with these 10x13
Envelopes & Mailers

10x13 Kraft String Closure Inter-Department Envelopes 100/Case

PN: EN1093

10 x 13 in 28 lb. Kraft Paper 100 PER CASE
$56.52 / CASE
IN STOCK Professional-grade nylon reinforced gusseted mailers designed for e-commerce brands shipping bulky items without cushioning. Heavy-duty nylon fibers deliver exceptional tear resistance while lighter weight reduces shipping costs. Each case contains 250 mailers ready for tape or staple closure.
Envelopes & Mailers

20x12.5x4 Reinforced Gusseted Mailers 250/Case

PN: B896

20 x 12.5 x 4 in Heavy-Duty Nylon Fibers 250 PER CASE
$389.69 / CASE
IN STOCK Ship-Lite® self-seal mailers deliver industrial-grade durability at competitive pricing. These 12x15.5
Envelopes & Mailers

12x15.5 White Self-Seal Ship-Lite Mailers 100/Case

PN: SLF1215WH

12 x 15 1/2 in 26 lb. Reinforced Paper 100 PER CASE
$87.40 / CASE
IN STOCK Ship-Lite® envelopes deliver six times the strength of standard paper mailers in a convenient 10x13
Envelopes & Mailers

10x13 Self-Seal Reinforced Ship-Lite Mailers 100/Case

PN: SLF1013WH

10 x 13 in 26 lb. Reinforced Paper 100 PER CASE
$59.36 / CASE
IN STOCK Industrial-grade 9x12
Envelopes & Mailers

9x12 Self-Seal Reinforced Ship-Lite Mailers 100/Case

PN: SLF0912WH

9 x 12 in 26 lb. Reinforced Paper 100 PER CASE
$54.76 / CASE
IN STOCK Ship-Lite® self-seal mailers engineered for industrial shipping. These 6x9
Envelopes & Mailers

6x9 Self-Seal Reinforced Ship-Lite Mailers 100/Case

PN: SLF0609WH

6 x 9 in 26 lb. Reinforced Paper 100 PER CASE
$31.43 / CASE
IN STOCK Professional-grade 26x28x5
Envelopes & Mailers

26x28x5 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM26285

26 x 28 x 5 in 2.5 Mil Polyethylene 100 PER CASE
$84.62 / CASE
IN STOCK Professional-grade 15x20x4
Envelopes & Mailers

15x20x4 2.5 Mil Self-Seal Poly Mailers 100/Case

PN: EPM15204

15 x 20 x 4 in 2.5 Mil Polyethylene 100 PER CASE
$37.43 / CASE
IN STOCK Professional-grade 13x16x4
Envelopes & Mailers

13x16x4 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM13164

13 x 16 x 4 in 2.5 Mil Polyethylene 100 PER CASE
$28.11 / CASE
IN STOCK Professional-grade 13x16x2
Envelopes & Mailers

13x16x2 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM13162

13 x 16 x 2 in 2.5 Mil Polyethylene 100 PER CASE
$32.54 / CASE
IN STOCK Professional-grade 11x13x4
Envelopes & Mailers

11x13x4 2.5 Mil Self-Seal Poly Mailers 100/Case

PN: EPM11134

11 x 13 x 4 in 2.5 Mil Polyethylene 100 PER CASE
$19.72 / CASE
IN STOCK Professional-grade 11x13x2 expansion poly mailers designed for e-commerce brands shipping thicker items like books, binders, and catalogs. 2.5 mil puncture and moisture-resistant polyethylene with self-seal closure and easy tear strip. 100 mailers per case.
Envelopes & Mailers

11x13x2 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM11132

11 x 13 x 2 in 2.5 Mil Polyethylene 100 PER CASE
$22.89 / CASE
IN STOCK 10x13x2 Expansion Poly Mailers 2.5 Mil Self-Seal White - Case of 100
Envelopes & Mailers

10x13x2 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM10132

10 x 13 x 2 in 2.5 Mil Polyethylene 100 PER CASE
$17.71 / CASE
IN STOCK Ship-Lite® envelopes deliver 6x the strength of standard paper mailers in a convenient expandable design. Made from 26 lb. reinforced paper with mesh screen poly fibers and moisture resistance, these white self-seal mailers handle books and bulky items with confidence. Buy by the case of 100 and reduce shipping damage while cutting costs.
Envelopes & Mailers

16x12x2 White Corrugated Mailers 100-Pack

PN: SLE12162WS

16 x 12 x 2 in 26 lb. Reinforced Paper 100 PER CASE
$170.59 / CASE
IN STOCK Ship-Lite® expandable mailers provide six times the strength of standard paper envelopes, engineered for industrial shipping needs. Reinforced with mesh-screened poly fibers and featuring moisture-resistant construction, these 12x16x2 white mailers handle books and bulky items with ease. Self-sealing closure and 100-piece case packaging maximize efficiency for high-volume shippers.
Envelopes & Mailers

12x16x2 White Corrugated Mailers 100-Pack

PN: SLE12162WE

12 x 16 x 2 in 26 lb. Reinforced Paper 100 PER CASE
$170.59 / CASE
IN STOCK 10x15x2
Envelopes & Mailers

10x15x2 26 lb Reinforced Expandable Ship-Lite Mailers 100/Case

PN: SLE10152WS

10 x 15 x 2 in 26 lb. Reinforced Paper 100 PER CASE
$126.15 / CASE
IN STOCK Ship-Lite® expandable mailers deliver six times the strength of standard paper envelopes in a 13x10x2 format. These white, reinforced self-seal envelopes feature moisture-resistant mesh poly fibers and a dependable press-and-seal closure–ideal for shipping books, documents, and bulky items without tape. Buy in cases of 100.
Envelopes & Mailers

13x10x2 Self-Seal Reinforced Expandable Ship-Lite Mailers 100/Case

PN: SLE10132WS

13 x 10 x 2 in 26 lb. Reinforced Paper 100 PER CASE
$113.06 / CASE
IN STOCK Packrift's 10x13x1.5 expandable Ship-Lite envelopes deliver industrial-grade durability for high-volume shipping operations. Made from 26 lb reinforced paper with mesh poly fibers for 6x strength vs. standard paper mailers. Self-seal closure, moisture-resistant design, sold in cases of 100.
Envelopes & Mailers

10x13x1.5 White Reinforced Expandable Ship-Lite Mailers 100/Case

PN: SLE10131WE

10 x 13 x 1 1/2 in 26 lb. Reinforced Paper 100 PER CASE
$112.67 / CASE
IN STOCK Skip the moisture–just peel and seal. These 15x12x3 kraft expandable self-seal envelopes feature a tear-strip design that keeps adhesive dust-free and ready to ship. Durable 40 lb. paper stock handles bulky items with expanding sides. Case of 250 mailers saves time and cuts mailroom costs.
Envelopes & Mailers

15x12x3 Kraft Expandable Self-Seal Envelopes 250/Case

PN: EN1075

15 x 12 x 3 in 40 lb. Paper Stock 250 PER CASE
$314.04 / CASE
IN STOCK Speed up your mailroom with these 15x10x2
Envelopes & Mailers

15x10x2 Kraft Self-Seal Corrugated Mailers 100-Pack

PN: EN1067

15 x 10 x 2 in 40 lb. Paper Stock 100 PER CASE
$99.03 / CASE
IN STOCK Streamline your mailroom with these 15x10x2 kraft expandable self-seal envelopes designed for speed and reliability. Constructed from durable 40 lb. paper stock with peel-and-seal convenience–no moisture required. Order by the case of 250 and eliminate sealing delays.
Envelopes & Mailers

15x10x2 Kraft Self-Seal Corrugated Mailers 250-Pack

PN: EN1074

15 x 10 x 2 in 40 lb. Paper Stock 250 PER CASE
$232.10 / CASE
IN STOCK 10x13x2
Envelopes & Mailers

10x13x2 Kraft Peel & Seal Expandable Self-Seal Envelopes 100/Case

PN: EN1076

10 x 13 x 2 in 40 lb. Paper Stock 100 PER CASE
$103.03 / CASE
IN STOCK 10x13x2
Envelopes & Mailers

10x13x2 Kraft Expandable Self-Seal Envelopes 100/Case

PN: EN1065

10 x 13 x 2 in 40 lb. Paper Stock 100 PER CASE
$96.20 / CASE
IN STOCK Speed up your mailroom with these 12 x 10 x 2
Envelopes & Mailers

12x10x2 Kraft Expandable Self-Seal Envelopes 100/Case

PN: EN1066

12 x 10 x 2 in 40 lb. Paper Stock 100 PER CASE
$94.16 / CASE
IN STOCK Skip the moisture–just peel and seal. These 9.5
Envelopes & Mailers

9.5x13x2 Kraft Expandable Self-Seal Envelopes 250/Case

PN: EN1073

9 1/2 x 13 x 2 in 40 lb. Paper Stock 250 PER CASE
$210.94 / CASE
IN STOCK Speed up your mailroom operations with these 9x12x2 kraft expandable self-seal envelopes that require zero moisture–just peel and seal. Made from durable 40 lb. paper stock with tear-strip protection, these 250-count cases deliver cost-efficient bulk shipping without compromising durability. End-loading design expands to accommodate bulky items safely.
Envelopes & Mailers

9x12x2 Kraft Expandable Self-Seal Envelopes 250/Case

PN: EN1072

9 x 12 x 2 in 40 lb. Paper Stock 250 PER CASE
$201.31 / CASE
IN STOCK Speed up your mailroom operations with these 11x5x2
Envelopes & Mailers

11x5x2 Kraft Peel & Seal Expandable Self-Seal Envelopes 100/Case

PN: EN1064

11 x 5 x 2 in 40 lb. Paper Stock 100 PER CASE
$64.10 / CASE
IN STOCK Eco-conscious shipping managers rely on these 7
Packing List Envelopes

7x5.5 Green Packing List Envelopes 1000/Case

PN: PQGREEN19

7 x 5.5 in Recycled Green Tinted Polyethylene 1000 PER CASE
$108.36 / CASE
IN STOCK 4.5x5.5
Packing List Envelopes

4.5x5.5 Green Packing List Envelopes 1000/Case

PN: PQGREEN12

4 1/2 x 5.5 in Recycled Green Tinted Polyethylene 1000 PER CASE
$65.77 / CASE
IN STOCK Stand out with vibrant pink self-seal poly mailers that protect products and impress customers. Each 14.5x19
Envelopes & Mailers

14.5x19 2.5 Mil Pink Self-Seal Poly Mailers 100/Case

PN: CPM1419P

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade 14.5x19
Envelopes & Mailers

14.5x19 2.5 Mil Yellow Self-Seal Poly Mailers 100/Case

PN: CPM1419Y

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade red poly mailers designed for e-commerce brands that demand durability. These 14.5x19 self-seal mailing bags feature 2.5 mil polyethylene construction with waterproof, puncture, and tear-resistant protection. Silver inner lining accepts labels and stamps for premium brand presentation.
Envelopes & Mailers

14.5x19 2.5 Mil Red Self-Seal Poly Mailers 100/Case

PN: CPM1419R

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade blue poly mailers with self-seal closure and silver interior lining. 19
Envelopes & Mailers

19x14.5 2.5 Mil Blue Self-Seal Poly Mailers 100/Case

PN: CPM1419BL

19 x 14.5 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade black poly mailers with integrated self-seal closure keep your shipments secure and protected. Each 14.5x19
Envelopes & Mailers

14.5x19 2.5 Mil Black Self-Seal Poly Mailers 100/Case

PN: CPM1419BK

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$56.09 / CASE
IN STOCK Professional-grade 12x15.5
Envelopes & Mailers

12x15.5 2.5 Mil Pink Self-Seal Poly Mailers 100/Case

PN: CPM1215P

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$35.24 / CASE
IN STOCK Professional 12x15.5
Envelopes & Mailers

12x15.5 2.5 Mil Yellow Self-Seal Poly Mailers 100/Case

PN: CPM1215Y

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$35.24 / CASE
IN STOCK Professional red poly mailers combine eye-catching color with industrial durability. Each 12x15.5
Envelopes & Mailers

12x15.5 2.5 Mil Red Self-Seal Poly Mailers 100/Case

PN: CPM1215R

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK Protect your shipments with our 12x15.5
Envelopes & Mailers

12x15.5 Blue Self-Seal Poly Mailers 100/Case

PN: CPM1215BL

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK Professional 12x15.5
Envelopes & Mailers

12x15.5 2.5 Mil Black Self-Seal Poly Mailers 100/Case

PN: CPM1215BK

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK 10x13 Pink Self-Seal Poly Mailers 2.5 Mil - Puncture Resistant, Case of 100
Envelopes & Mailers

10x13 2.5 Mil Pink Self-Seal Poly Mailers 100/Case

PN: CPM1013P

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK Professional 10x13
Envelopes & Mailers

10x13 2.5 Mil Yellow Self-Seal Poly Mailers 100/Case

PN: CPM1013Y

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK 10x13 Red Poly Mailers 2.5 Mil Self-Seal Waterproof - Case of 100
Envelopes & Mailers

10x13 2.5 Mil Red Self-Seal Poly Mailers 100/Case

PN: CPM1013R

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK 10x13 Blue Poly Mailers Self-Seal 2.5 Mil - Case of 100
Envelopes & Mailers

10x13 2.5 Mil Blue Self-Seal Poly Mailers 100/Case

PN: CPM1013BL

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK 10x13 Black Poly Mailers 2.5 Mil Self-Seal, Case of 100
Envelopes & Mailers

10x13 2.5 Mil Black Self-Seal Poly Mailers 100/Case

PN: CPM1013BK

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK Keep internal mail organized and routed efficiently with these 13
Envelopes & Mailers

13x10 Blue String Closure Inter-Department Envelopes 100/Case

PN: EN1097

13 x 10 in Paper Stock 100 PER CASE
$110.56 / CASE
IN STOCK 10x13
Envelopes & Mailers

10x13 Yellow String Closure Inter-Department Envelopes 100/Case

PN: EN1096

10 x 13 in Paper Stock 100 PER CASE
$110.71 / CASE

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