Poly Mailers

IN STOCK Professional-grade 20x24x4 expansion poly mailers built for e-commerce brands shipping books, binders, and catalogs. Features self-seal closure with tear strip, puncture-resistant 2.5 mil polyethylene, and gusseted design for thicker items. Sold by the case of 100.
Envelopes & Mailers

20x24x4 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: EPM20244

20 x 24 x 4 in 2.5 Mil Polyethylene 100 PER CASE
$59.96 / CASE
IN STOCK 10x13
Envelopes & Mailers

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

PN: CV1013100PK

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / CASE
IN STOCK Protect your products with puncture and water-resistant 9x12
Envelopes & Mailers

9x12 5 Mil Self-Seal Poly Mailers 1000/Case

PN: B869

9 x 12 in 2.5 Mil Polyethylene 1000 PER CASE
$115.70 / CASE
IN STOCK Protect your shipments with our 12x15.5
Envelopes & Mailers

12x15.5 5 Mil Self-Seal Poly Mailers 500/Case

PN: B870

12 x 15 1/2 in 2.5 Mil Polyethylene 500 PER CASE
$93.04 / CASE
IN STOCK Industry-standard 19x24
Envelopes & Mailers

19x24 2.5 Mil Self-Seal Returnable Poly Mailers 100/Case

PN: RPM1924

19 x 24 in 2.5 Mil Polyethylene 100 PER CASE
$58.47 / CASE
IN STOCK Industry-standard 14x17
Envelopes & Mailers

14x17 2.5 Mil White Poly Mailers 100/Case

PN: RPM1417

14 x 17 in 2.5 Mil Polyethylene 100 PER CASE
$31.66 / CASE
IN STOCK Professional-grade returnable poly mailers designed for e-commerce brands managing customer returns at scale. Each 12x15.5
Envelopes & Mailers

12x15.5 2.5 Mil Poly Mailers 100/Case

PN: RPM1215

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$26.86 / CASE
IN STOCK Premium 24x24
Envelopes & Mailers

24x24 5 Mil Self-Seal Poly Mailers 125/Case

PN: B878

24 x 24 in 2.5 Mil Polyethylene 125 PER CASE
$64.64 / CASE
IN STOCK Durable 19x24
Envelopes & Mailers

19x24 5 Mil Self-Seal Poly Mailers 125/Case

PN: B877

19 x 24 in 2.5 Mil Polyethylene 125 PER CASE
$51.12 / CASE
IN STOCK Heavy-duty 19x14.5
Envelopes & Mailers

19x14.5 5 Mil White Self-Seal Poly Mailers 250/Case

PN: B876

19 x 14.5 in 2.5 Mil Polyethylene 250 PER CASE
$63.15 / CASE
IN STOCK 10x13 Self-Seal Poly Mailers 2.5 Mil White - 1000 Pack
Envelopes & Mailers

10x13 5 Mil White Self-Seal Poly Mailers 1000-Pack

PN: B867

10 x 13 in 2.5 Mil Polyethylene 1000 PER CASE
$133.67 / CASE
IN STOCK Professional 24x36 white poly mailers with self-seal tear strip protect e-commerce shipments from moisture, punctures, and tampering. Heavy-duty 2.5 mil polyethylene construction with high-strength seams handles overpacking without failure. Bulk case of 200 units delivers cost-effective shipping protection with label-ready white exterior and silver-lined interior.
Envelopes & Mailers

24x36 2.5 Mil White Self-Seal Tear Strip Poly Mailers 200/Case

PN: B913

24 x 36 in 2.5 Mil Polyethylene 200 PER CASE
$230.39 / CASE
IN STOCK Professional 24x24 white poly mailers deliver puncture and tear-resistant protection for e-commerce shipments. 2.5 mil polyethylene construction with self-seal tear strip ensures contents stay secure and dry. Case of 200 mailers ready to ship.
Envelopes & Mailers

24x24 White Self-Seal Tear Strip Poly Mailers 200/Case

PN: B912

24 x 24 in 2.5 Mil Polyethylene 200 PER CASE
$115.10 / CASE
IN STOCK Professional 19x24
Envelopes & Mailers

19x24 2.5 Mil Self-Seal Poly Mailers 250/Case

PN: B911

19 x 24 in 2.5 Mil Polyethylene 250 PER CASE
$114.37 / CASE
IN STOCK Professional 14.5x19
Envelopes & Mailers

14.5x19 Self-Seal Poly Mailers 500/Case

PN: B861

14 1/2 x 19 in 2.5 Mil Polyethylene 500 PER CASE
$141.99 / CASE
IN STOCK Professional 14x17
Envelopes & Mailers

14x17 2.5 Mil White Self-Seal Poly Mailers 500/Case

PN: B879

14 x 17 in 2.5 Mil Polyethylene 500 PER CASE
$118.90 / CASE
IN STOCK Protect your shipments with professional-grade self-seal poly mailers featuring a convenient tear strip and superior puncture resistance. These 12 x 15.5
Envelopes & Mailers

12x15.5 2.5 Mil Self-Seal Tear Strip Poly Mailers 500/Case

PN: B875

12 x 15 1/2 in 2.5 Mil Polyethylene 500 PER CASE
$86.87 / CASE
IN STOCK 10x13
Envelopes & Mailers

10x13 5 Mil White Self-Seal Tear Strip Poly Mailers 500/Case

PN: B874

10 x 13 in 2.5 Mil Polyethylene 500 PER CASE
$63.86 / CASE
IN STOCK Heavy-duty 9x12 white poly mailing bags with integrated tear strip and self-seal closure. Each case contains 500 mailers made from 2.5 mil polyethylene, delivering puncture, tear, and water resistance for reliable product protection during transit.
Envelopes & Mailers

9x12 5 Mil White Self-Seal Tear Strip Poly Mailers 500/Case

PN: B873

9 x 12 in 2.5 Mil Polyethylene 500 PER CASE
$54.33 / CASE
IN STOCK 10.5 x 7.5
Envelopes & Mailers

10.5x7.5 5 Mil Self-Seal Tear Strip Poly Mailers 1000/Case

PN: B872

10 1/2 x 7.5 in 2.5 Mil Polyethylene 1000 PER CASE
$78.58 / CASE
IN STOCK Durable 6x9 self-seal poly mailers engineered for e-commerce brands. Features 2.5 mil polyethylene construction with tear strip opening, puncture and water resistance, and strong seams that hold even when overpacked. Sold in cases of 1000 for consistent professional presentation.
Envelopes & Mailers

6x9 5 Mil Self-Seal Tear Strip Poly Mailers 1000/Case

PN: B871

6 x 9 in 2.5 Mil Polyethylene 1000 PER CASE
$57.89 / CASE
IN STOCK Premium 36x24
Envelopes & Mailers

36x24 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: B880100PK

36 x 24 in 2.5 Mil Polyethylene 100 PER CASE
$170.29 / CASE
IN STOCK Ship with confidence using our 24x24
Envelopes & Mailers

24x24 5 Mil Self-Seal Poly Mailers 100-Pack

PN: B878100PK

24 x 24 in 2.5 Mil Polyethylene 100 PER CASE
$90.16 / CASE
IN STOCK Heavy-duty 2.5 mil polyethylene self-seal mailers designed for e-commerce brands shipping products that demand protection. 24
Envelopes & Mailers

24x19 5 Mil Self-Seal Poly Mailers 100-Pack

PN: B877100PK

24 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$68.12 / CASE
IN STOCK Professional-grade 14.5x19
Envelopes & Mailers

14.5x19 White Self-Seal Poly Mailers 100-Pack

PN: B876100PK

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$46.07 / CASE
IN STOCK Professional 14x17
Envelopes & Mailers

14x17 2.5 Mil Self-Seal Tear Strip Poly Mailers 100-Pack

PN: B879100PK

14 x 17 in 2.5 Mil Polyethylene 100 PER CASE
$39.25 / CASE
IN STOCK Professional-grade self-seal poly mailers designed for e-commerce brands who demand durability and presentation. Each 12x15.5
Envelopes & Mailers

12x15.5 5 Mil Self-Seal Poly Mailers 100-Pack

PN: B875100PK

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$27.51 / CASE
IN STOCK Protect your shipments with these premium 12x15.5
Envelopes & Mailers

12x15.5 5 Mil Self-Seal Poly Mailers 50-Pack

PN: B87550PK

12 x 15 1/2 in 2.5 Mil Polyethylene 50 PER CASE
$17.47 / CASE
IN STOCK 10x13 White Poly Mailers 2.5 Mil Self-Seal Tear Strip - 100 Pack
Envelopes & Mailers

10x13 5 Mil White Self-Seal Tear Strip Poly Mailers 100-Pack

PN: B874100PK

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$20.38 / CASE
IN STOCK Professional-grade 9x12
Envelopes & Mailers

9x12 5 Mil Self-Seal Poly Mailers 100-Pack

PN: B873100PK

9 x 12 in 2.5 Mil Polyethylene 100 PER CASE
$21.59 / CASE
IN STOCK Protect shipments with puncture and water-resistant 7.5x10.5
Envelopes & Mailers

7.5x10.5 5 Mil Self-Seal Tear Strip Poly Mailers 100-Pack

PN: B872100PK

7 1/2 x 10 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$18.64 / CASE
IN STOCK Premium 6x9
Envelopes & Mailers

6x9 Self-Seal Poly Mailers 100-Pack

PN: B871100PK

6 x 9 in 2.5 Mil Polyethylene 100 PER CASE
$16.68 / CASE
IN STOCK Heavy-duty 18x51
Envelopes & Mailers

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

PN: LPM1851

18 x 51 in Polyethylene 25 PER CASE
$52.05 / CASE
IN STOCK Professional 18x48
Envelopes & Mailers

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

PN: LPM1848

18 x 48 in Polyethylene 25 PER CASE
$45.30 / CASE
IN STOCK Professional-grade 13x45
Envelopes & Mailers

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

PN: LPM1345

13 x 45 in 2.5 Mil Polyethylene 50 PER CASE
$65.74 / CASE
IN STOCK Protect your shipments with our 9.5x45
Envelopes & Mailers

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

PN: LPM945

9 1/2 x 45 in 2.5 Mil Polyethylene 50 PER CASE
$48.07 / CASE
IN STOCK Durable 8.5
Envelopes & Mailers

8.5x39 2.5 Mil White Self-Seal Poly Mailers 100/Case

PN: LPM839

8 1/2 x 39 in 2.5 Mil Polyethylene 100 PER CASE
$77.34 / CASE
IN STOCK Premium 8.5 x 33
Envelopes & Mailers

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

PN: LPM833

8 1/2 x 33 in 2.5 Mil Polyethylene 100 PER CASE
$71.28 / CASE
IN STOCK Durable 6x39
Envelopes & Mailers

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

PN: LPM639

6 x 39 in 2.5 Mil Polyethylene 100 PER CASE
$69.07 / 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 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

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

Overview

69 poly mailers from 6x9 to 36 inches: 2.5, 4 and 5 mil self-seal in white, clear and colors, with expansion and returnable styles, 25 to 1,000 per case. Size, mil and mailers per case are 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 Poly Mailers 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.

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Reorder

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Larger orders

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What to check first

  • Usable inside size
  • Mil thickness
  • Closure type
  • Case quantity
Common wrong-order risk: Using a poly mailer for items that need edge protection. Confirm the item is soft or protected before choosing a flexible mailer.
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