Poly Mailers

Poly mailers for clothing, soft goods and everyday shipping

Shop poly mailers by listed size, material thickness, closure and case count. For folded clothing and other non-fragile items, a mailer can be a practical alternative to a carton. Start with the packed item: its width, length and thickness determine the size you need. Then compare white, clear-view or black poly mailers and select a case quantity that fits your order volume.

The 10x13 poly mailers below are three specific starting points. Their listed dimensions are not a guarantee of usable interior space: allow room for the item's thickness and the adhesive closure, and test the fit before committing to a larger order.

Compare 10x13 poly mailers

Selected 10x13 self-seal poly mailers
Product and SKU Listed size Thickness and closure Case count
Black poly mailers — CPM1013BK 10 x 13 in 2.5 mil, self-seal 100 mailers
Clear-view poly mailers — CV1013100PK 10 x 13 in 2.5 mil, self-seal 100 mailers
Clear-view poly mailers — CV1013 10 x 13 in 2.5 mil, self-seal 500 mailers

The two clear-view examples have the same listed size and thickness but different case quantities. Compare the exact SKU and case count when reordering; a similar product name does not establish the same pack quantity.

Price per mailer, white self-seal

White self-seal poly mailers by size
Size (in)MilMailers per casePrice per casePrice per mailer
6 x 92.5 1,000 $57.89 5.8¢
7.5 x 10.52.5 1,000 $78.58 7.9¢
9 x 122.5 500 $54.33 10.9¢
10 x 132.5 500 $63.86 12.8¢
12 x 15.52.5 500 $86.87 17.4¢
14 x 172.5 500 $118.90 23.8¢
14.5 x 192.5 250 $63.15 25.3¢
19 x 242.5 125 $51.12 40.9¢
24 x 242.5 125 $64.64 51.7¢
24 x 362.5 200 $230.39 $1.15
6 x 392.5 100 $69.07 69.1¢
8.5 x 332.5 100 $71.28 71.3¢
8.5 x 392.5 100 $77.34 77.3¢
9.5 x 452.5 50 $48.07 96.1¢
13 x 452.5 50 $65.74 $1.31
18 x 484 25 $45.30 $1.81
18 x 514 25 $52.05 $2.08

Divide the displayed case price by its mailer count to calculate the product price per mailer. For an order-level comparison, add quoted shipping and divide by the total number of mailers. Compare equivalent sizes and thicknesses before choosing the lowest unit price.

Clear-front, expansion and black mailers

Clear-front, expansion and black poly mailers, 2.5 mil
Size (in)StyleMailers per casePrice per casePrice per mailer
5 x 7Clear front 100 $17.63 17.6¢
6 x 9Clear front 100 $20.03 20.0¢
9 x 12Clear front 500 $79.68 15.9¢
10 x 13Clear front 500 $91.99 18.4¢
12 x 15.5Clear front 100 $38.06 38.1¢
14 x 17Clear front 100 $45.07 45.1¢
14.5 x 19Clear front 100 $65.09 65.1¢
10 x 13 x 2Expansion 100 $17.71 17.7¢
11 x 13 x 2Expansion 100 $22.89 22.9¢
11 x 13 x 4Expansion 100 $19.72 19.7¢
13 x 16 x 2Expansion 100 $32.54 32.5¢
13 x 16 x 4Expansion 100 $28.11 28.1¢
15 x 20 x 4Expansion 100 $37.43 37.4¢
20 x 24 x 4Expansion 100 $59.96 60.0¢
26 x 28 x 5Expansion 100 $84.62 84.6¢
10 x 13Black 100 $25.97 26.0¢
12 x 15.5Black 100 $38.06 38.1¢
14.5 x 19Black 100 $56.09 56.1¢

Use each row's dimensions, format and count to compare these options. An expansion mailer adds depth to its listed format; check its specific dimensions instead of treating it as interchangeable with a flat mailer. Black and clear-view options also serve different presentation needs.

Choose a mailer for the contents

Packaging choices to check before ordering
What you are packing Start with Check before buying
Folded clothing or soft accessories A flat self-seal poly mailer Packed thickness, fit and room to close the seal without forcing it
A bulkier soft item An expansion mailer The listed depth as well as width and length
An item whose appearance matters through the package A clear-view mailer The viewing area and a suitable label position
An item needing cushioning or crush protection A padded format or properly sized carton The complete protective packing method; plain poly film supplies no cushioning

Buying poly mailers in bulk

Build your order around the sizes you actually use. Keep separate counts for each SKU, and compare smaller and larger case packs using the same unit calculation. A larger case only helps if its contents fit your orders and you have room to store it.

For a multi-case order or recurring requirement, request a bulk quote with the SKUs, case quantities and delivery ZIP. Include your expected reorder frequency if known. If you are matching another supplier's packaging, the Uline poly mailer alternatives guide explains which specifications to compare.

Poly mailer questions

Will a 10x13 poly mailer fit my product?

Measure the item as it will ship, including folds and any inner packaging. Compare all dimensions and leave room for closure. A flat item's width and length alone cannot confirm the fit of a thicker item.

Are these examples self-seal?

Yes. All three linked 10x13 examples are listed as self-seal. Check the individual listing for closure details on other products, particularly when a return mailing is part of your process.

Should I choose a poly mailer or a padded mailer?

Plain poly mailers suit contents that do not need cushioning. Browse bubble mailers or padded mailers when padding is needed, and use a carton and appropriate protection when the contents need a rigid package.

Complete your packing setup with shipping labels and packing list envelopes, or browse the broader mailers and envelopes collection.

For larger white poly mailers, compare these exact listed dimensions and case counts with the 10x13 options above. A nominal 14.5x19 or expansion dimension is not a promise of usable space after the closure and packed-item thickness.

White self-seal formats for a separate fit check.
SKU Listed dimensions Listed film Mailers per case
B876100PK 14.5 × 19 in 2.5 mil; white 100
EPM20244 20 × 24 × 4 in; expansion format 2.5 mil; white 100

For 350 mailers of one selected 100-count format, four cases supply 400. Fit the actual contents with their packing, leave space for the closing flap and check a sample before replacing a current size. These unpadded poly mailers do not provide the cushioning of a bubble mailer or the rigidity of a corrugated carton.

IN STOCK Professional-grade 14.5x19" yellow poly mailers with reliable self-seal closure and 2.5 mil puncture-resistant polyethylene construction. Waterproof, tamper-proof, and tear-resistant design protects products in transit. Sold by the case of 100 units.
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" x 14.5" size, 2.5 mil puncture-resistant polyethylene protects products from moisture, tears, and tampering. Ships in convenient case of 100.
Envelopes & Mailers

14.5x19 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" mailer features 2.5 mil polyethylene construction that resists punctures, tears, water, and tampering–ideal for e-commerce brands requiring reliable packaging. Ship 100 units per case with labels and stamps that adhere perfectly to the colored exterior and silver lining.
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" pink self-seal poly mailers with 2.5 mil polyethylene construction deliver the durability and branded appearance your e-commerce shipments demand. Puncture-resistant, waterproof, and tamper-evident with high-strength seams that keep contents secure. Sold as a case of 100 for cost-effective bulk shipping.
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" yellow poly mailers with self-seal closure protect your shipments from moisture, tears, and tampering. 2.5 mil puncture-resistant polyethylene in a case of 100. Silver inner lining accepts labels, stamps, and ink for branded presentation.
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" self-seal mailing bag features 2.5 mil polyethylene construction with puncture, water, and tear resistance. Sold by the case of 100–trusted by e-commerce brands for secure product presentation.
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" blue self-seal poly mailers–engineered for puncture, tear, and water resistance. Each case includes 100 durable 2.5 mil polyethylene mailers with high-strength seams and a professional blue exterior that attracts customer attention while the silver inner lining accepts labels and stamps perfectly.
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" black poly mailers with self-seal closure protect your products in transit. These 2.5 mil polyethylene envelopes offer puncture, water, tear, and tamper resistance with high-strength seams that stay sealed even when overpacked. Includes 100 mailers per case–ideal for branded shipping at scale.
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" yellow poly mailers combine eye-catching color with reliable protection. These self-seal, puncture-resistant polyethylene mailers feature silver inner lining and strong seams to keep contents secure. Case of 100 mailers ideal for e-commerce brands seeking durable, cost-effective shipping solutions.
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 10x13" Clear View Poly Mailers, 2.5 Mil Self-Seal, Case of 500
Envelopes & Mailers

10x13 2.5 Mil Self-Seal Clear View Poly Mailers 500/Case

PN: CV1013

10 x 13 in 2.5 Mil Polyethylene 500 PER CASE
$91.99 / CASE
IN STOCK Display products while protecting shipments. These 9x12" clear view poly mailers feature a reliable self-seal closure and tear-resistant 2.5 mil polyethylene construction. Sold by the case of 500–the professional mailer choice for e-commerce brands prioritizing product presentation and shipping security.
Envelopes & Mailers

9x12 2.5 Mil Self-Seal Clear View Poly Mailers 500/Case

PN: CV912

9 x 12 in 2.5 Mil Polyethylene 500 PER CASE
$79.68 / CASE
IN STOCK Display your products with confidence using these 14.5x19" Clear View Poly Mailers. Featuring a durable 2.5 mil tear-resistant polyethylene construction with self-seal closure and dual perforations for easy opening, these mailers combine professional presentation with reliable protection. Sold by the case of 100.
Envelopes & Mailers

14.5x19 Self-Seal Clear View Poly Mailers 100/Case

PN: CV1419

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$65.09 / CASE
IN STOCK Display-ready 14x17" clear view poly mailers with professional opaque back for addresses. Self-seal closure with double perforations for quick, secure sealing. 2.5 mil tear-resistant polyethylene protects contents in 100-count cases.
Envelopes & Mailers

14x17 Self-Seal Clear View Poly Mailers 100/Case

PN: CV1417

14 x 17 in 2.5 Mil Polyethylene 100 PER CASE
$45.07 / CASE
IN STOCK Display-front poly mailers designed for e-commerce brands who need professional presentation and reliable protection. Clear front window showcases contents while opaque back accommodates postage and labeling. Self-seal closure with double perforations for fast, easy opening–shipped in cases of 100.
Envelopes & Mailers

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

PN: CV1215

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK Display your products while protecting them. These 9x12" clear view poly mailers feature a transparent front window and self-seal closure for professional presentation. Made from tear-resistant 2.5 mil polyethylene with double perforations for easy opening. Sold as a case of 100.
Envelopes & Mailers

9x12 2.5 Mil Clear Self-Seal Poly Mailers 100/Case

PN: CV912100PK

9 x 12 in 2.5 Mil Polyethylene 100 PER CASE
$23.19 / CASE
IN STOCK Display your products while protecting them. These 6x9" clear view poly mailers feature a transparent front panel for product visibility and opaque back for postage. Self-sealing closure with double perforations ensures quick, reliable sealing every time. Tear-resistant 2.5 mil polyethylene construction holds up through handling and shipping.
Envelopes & Mailers

6x9 2.5 Mil Clear Self-Seal Poly Mailers 100/Case

PN: CV69

6 x 9 in 2.5 Mil Polyethylene 100 PER CASE
$20.03 / CASE
IN STOCK Display products while protecting contents with our 5x7 clear view poly mailers featuring durable 2.5 mil self-sealing polyethylene. Transparent front window showcases items; opaque white back accommodates postage and addresses. Double perforated edges enable quick, clean opening.
Envelopes & Mailers

5x7 2.5 Mil Clear Self-Seal Poly Mailers 100-Pack

PN: CV57

5 x 7 in 2.5 Mil Polyethylene 100 PER CASE
$17.63 / CASE

Product Help Request

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

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.

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 orders, send your list and ZIP and get a delivered price by email.

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.
Compare mailer vs box -> Get a delivered quote for larger orders -> Shop poly bags -> View products below ->