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 Protect sensitive documents and photos with these professional 7x9
Envelopes & Mailers

7x9 White Chipboard Self-Seal Mailers 100/Case

PN: RM10SS

7 x 9 in .020 Chipboard 100 PER CASE
$43.59 / CASE
IN STOCK Protect sensitive documents and photos with Packrift's 6x8
Envelopes & Mailers

6x8 White Self-Seal Chipboard Stayflats Plus Mailers 100/Case

PN: RM1SS

6 x 8 in .020 Chipboard 100 PER CASE
$41.08 / CASE
IN STOCK Professional 6x6
Envelopes & Mailers

6x6 White Self-Seal Chipboard Stayflats Plus Mailers 200/Case

PN: RM9SS

6 x 6 in .020 Chipboard 200 PER CASE
$60.06 / CASE
IN STOCK Professional-grade 5 1/8
Envelopes & Mailers

5 1/8 x 5 1/8 in White Chipboard Self-Seal Stayflats Plus Mailers 200/Case

PN: RM8SS

5 1/8 x 5 1/8 in .020 Chipboard 200 PER CASE
$58.24 / CASE
IN STOCK Eliminate moisture-sealing delays with these white self-seal envelopes. Simply peel and seal in seconds with durable 28 lb. paper construction. Perfect for high-volume mailrooms–500 envelopes per case ensure consistent, professional shipping compliance.
Envelopes & Mailers

15.5x12 28 lb White Self-Seal Envelopes 500/Case

PN: EN1071

15 1/2 x 12 in 28 lb. Paper Stock 500 PER CASE
$197.60 / CASE
IN STOCK Speed up your mailroom with these 9.5x12.5
Envelopes & Mailers

9.5x12.5 28 lb White Self-Seal Envelopes 500/Case

PN: EN1070

9 1/2 x 12 1/2 in 28 lb. Paper Stock 500 PER CASE
$133.90 / CASE
IN STOCK Eliminate sealing delays with our 6x9
Envelopes & Mailers

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

PN: EN1069

6 x 9 in 28 lb. Paper Stock 500 PER CASE
$93.60 / CASE
IN STOCK Eliminate moisture sealing delays with 9x12
Envelopes & Mailers

9x12 28 lb White Redi-Seal Envelopes 500/Case

PN: EN1047

9 x 12 in 28 lb. Paper Stock 500 PER CASE
$197.60 / CASE
IN STOCK Save mailroom time with our 6.5
Envelopes & Mailers

6.5x9.5 28 lb White Redi-Seal Envelopes 1000/Case

PN: EN1056

6 1/2 x 9 1/2 in 28 lb. Paper Stock 1000 PER CASE
$371.58 / CASE
IN STOCK Speed up mailroom operations with Redi-Seal self-seal envelopes that require zero moisture–just fold, press, and seal. These durable 9
Envelopes & Mailers

6x9 28 lb White Redi-Seal Envelopes 1000/Case

PN: EN1046

6 x 9 in 28 lb. Paper Stock 1000 PER CASE
$360.32 / CASE
IN STOCK Heavy-duty 27x22 white jumbo envelopes made from 28 lb. paper stock for secure flat storage of oversized items. Ungummed flaps allow multiple reuse cycles, reducing per-unit packaging costs. Shipped in convenient cases of 100 for mailroom efficiency.
Envelopes & Mailers

27x22 28 lb White Ungummed Jumbo Envelopes 100/Case

PN: EN1086W

27 x 22 in 28 lb. Paper Stock 100 PER CASE
$125.45 / CASE
IN STOCK Professional-grade 22 x 17
Envelopes & Mailers

22x17 28 lb White Jumbo Envelopes 250/Case

PN: EN1084W

22 x 17 in 28 lb. Paper Stock 250 PER CASE
$209.30 / CASE
IN STOCK Protect and ship oversized documents with confidence using our 20
Envelopes & Mailers

20x15 28 lb White Jumbo Envelopes 250/Case

PN: EN1082W

20 x 15 in 28 lb. Paper Stock 250 PER CASE
$173.71 / CASE
IN STOCK Ship oversized documents safely with Packrift's 18x14 white jumbo envelopes–built from durable 28lb paper stock to handle high-volume mailroom operations. Ungummed flaps enable cost-effective reuse across multiple shipments. Each case contains 250 envelopes for reliable, bulk-ready packaging compliance.
Envelopes & Mailers

18x14 28 lb White Ungummed Jumbo Envelopes 250/Case

PN: EN1081W

18 x 14 in 28 lb. Paper Stock 250 PER CASE
$149.60 / CASE
IN STOCK Oversized white jumbo envelopes designed for large printed items, documents, and flat storage needs. 28 lb. paper stock construction with ungummed flaps for cost-effective reuse. Bulk case of 250 envelopes keeps your mailroom stocked and compliant.
Envelopes & Mailers

18.5x12.5 28 lb White Jumbo Envelopes 250/Case

PN: EN1080W

18 1/2 x 12.5 in 28 lb. Paper Stock 250 PER CASE
$137.80 / CASE
IN STOCK Heavily gummed 9x12
Envelopes & Mailers

9x12 28 lb White Gummed Envelopes 1000/Case

PN: EN1026

9 x 12 in 28 lb. Paper Stock 1000 PER CASE
$250.73 / CASE
IN STOCK Durable 9x12
Envelopes & Mailers

9x12 28 lb White Clasp Envelopes 500/Case

PN: EN1010

9 x 12 in 28 lb. Woven Paper 500 PER CASE
$289.73 / CASE
IN STOCK Keep shipping documents secure with these 7x5.5
Packing List Envelopes

7x5.5 2 Mil Packing List Envelopes

PN: PL468

7 x 5.5 in 2 Mil Poly 1000 PER CASE
$76.40 / CASE
IN STOCK Heavy-duty 7x5.5
Packing List Envelopes

7x5.5 2 Mil Packing List Envelopes 1000/Case

PN: PL467

7 x 5.5 in 2 Mil Poly 1000 PER CASE
$75.88 / CASE
IN STOCK Heavy-duty 5.5x10
Packing List Envelopes

5.5x10 2 Mil Packing List Envelopes 1000/Case

PN: PL512

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$100.46 / CASE
IN STOCK Professional 5.25
Packing List Envelopes

5.25x8 2 Mil Packing List Envelopes 1000/Case

PN: PL424

5 1/4 x 8 in 2 Mil Poly 1000 PER CASE
$55.72 / CASE
IN STOCK Protect shipping documents with our 4.5x5.5
Packing List Envelopes

4.5x5.5 2 Mil Packing List Envelopes 1000/Case PL465

PN: PL465

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$36.36 / CASE
IN STOCK Protect shipping documents with patriotic style. These 4.5x5.5
Packing List Envelopes

4.5x5.5 2 Mil Packing List Envelopes 1000/Case PLUSA12

PN: PLUSA12

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$32.36 / CASE
IN STOCK Heavy-duty 4.5x5.5
Packing List Envelopes

4.5x5.5 2 Mil Packing List Envelopes 1000/Case PL466

PN: PL466

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$45.12 / CASE
IN STOCK Protect and organize critical shipping documents with these heavy-duty 5.5x10 red export envelopes. Pre-printed with specialty messages and backed with hot melt adhesive for strong, reliable adhesion to paper and corrugated. Sold by the case (1000 envelopes) for maximum efficiency.
Packing List Envelopes

5.5x10 2 Mil Red Document Packing List Envelopes 1000/Case

PN: PL440

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Protect and organize shipping documents with these 6x11 pre-printed packing list envelopes made from durable 2 mil poly. Hot melt adhesive backing bonds securely to paper and corrugated surfaces for reliable attachment during transit. Case of 1,000 envelopes gives your warehouse consistent, compliance-ready shipping solutions at scale.
Packing List Envelopes

6x11 Packing List Envelopes 1000/Case

PN: PL511

6 x 11 in 2 Mil Poly 1000 PER CASE
$136.04 / CASE
IN STOCK Pre-printed yellow document envelopes designed for hazardous waste shipping compliance. Heavy 2 mil poly construction with hot melt adhesive backing securely adheres to corrugated boxes and paper surfaces. Ships 1,000 envelopes per case for cost-effective bulk ordering.
Packing List Envelopes

5.5x10 2 Mil Yellow Document Packing List Envelopes 1000/Case

PN: PL482

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$103.31 / CASE
IN STOCK Professional 5.5x10 packing list envelopes pre-printed with compliance text and built for durability. Heavy 2 mil poly construction with hot melt adhesive backing secures documents to corrugated shipments. Case of 1,000 envelopes reduces per-unit costs and keeps your operation stocked.
Packing List Envelopes

5.5x10 2 Mil Black Packing List Envelopes 1000/Case

PN: PL97

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Premium translucent silver glamour mailers with professional self-seal adhesive closure–perfect for e-commerce brands showcasing high-end products. 2.8 mil aluminized polyester construction delivers water resistance and durability. 250 mailers per case.
Envelopes & Mailers

6.25x10.25 2.8 Mil Silver Self-Seal Mailers 250/Case

PN: GCV0610

6 1/4 x 10 1/4 in 2.8 Mil Aluminized Polyester Laminate 250 PER CASE
$151.29 / CASE
IN STOCK 10x13
Envelopes & Mailers

10x13 14 lb Tamper Evident Tyvek Envelopes 100/Case

PN: TYF1013TE

10 x 13 in 14 lb. Olefin 100 PER CASE
$122.08 / CASE
IN STOCK 9x12
Envelopes & Mailers

9x12 14 lb Tamper Evident Tyvek Envelopes 100/Case

PN: TYF0912TE

9 x 12 in 14 lb. Olefin 100 PER CASE
$116.48 / CASE
IN STOCK Industry-standard 9.5x12.5
Envelopes & Mailers

9.5x12.5 White Self-Seal Chipboard Stayflats Mailers 250/Case

PN: RM1EP

9 1/2 x 12.5 in .012 Chipboard 250 PER CASE
$124.42 / CASE
IN STOCK Packrift's 9x11.5
Envelopes & Mailers

9x11.5 White Stayflats Mailers 100/Case

PN: RM2DNB

9 x 11 1/2 in Paperboard 100 PER CASE
$66.25 / CASE
IN STOCK Adhesive-backed 2 mil poly packing list envelopes designed to protect and organize shipping documents. 12
Packing List Envelopes

12x10 2 Mil Orange Packing List Envelopes 500/Case

PN: PL479

12 x 10 in 2 Mil Poly 500 PER CASE
$133.95 / CASE
IN STOCK 10x12
Packing List Envelopes

10x12 2 Mil Red Packing List Envelopes 500/Case

PN: PL437

10 x 12 in 2 Mil Poly 500 PER CASE
$133.95 / CASE
IN STOCK 10x12
Packing List Envelopes

10x12 2 Mil Orange Packing List Envelopes 500/Case

PN: PL449

10 x 12 in 2 Mil Poly 500 PER CASE
$133.95 / CASE
IN STOCK Keep shipping documents secure and organized with these durable 7.5x5.5
Packing List Envelopes

7.5x5.5 2 Mil Yellow Self-Adhesive Packing List Envelopes 1000/Case

PN: PL448

7 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$75.35 / CASE
IN STOCK Keep shipping documents secure and visible with these 5.5x10
Packing List Envelopes

5.5x10 2 Mil Red Packing List Envelopes

PN: PL492

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Protect critical shipping documents with our 5.5x10
Packing List Envelopes

5.5x10 2 Mil Red Self-Adhesive Packing List Envelopes 1000/Case

PN: PL436

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Industrial-grade red packing list envelopes designed to protect and display shipping documents, customs papers, and miscellaneous shipment information. These 5.5
Packing List Envelopes

5.5x10 2 Mil Red Packing List Envelopes 1000/Case

PN: PL447

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Professional-grade 5.5
Packing List Envelopes

5.5x10 2 Mil Orange Packing List Envelopes 1000/Case

PN: PL450

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$99.42 / CASE
IN STOCK Protect important documents during shipment with these durable 5.25
Packing List Envelopes

5.25x7.5 2 Mil Clear Self-Adhesive Packing List Envelopes 1000/Case

PN: PL421

5 1/4 x 7.5 in 2 Mil Poly 1000 PER CASE
$75.35 / CASE
IN STOCK Protect shipping documents with adhesive-backed 2 mil poly packing list envelopes. Pre-printed
Packing List Envelopes

4.5x5.5 2 Mil Red Packing List Envelopes 1000/Case PL480

PN: PL480

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$39.13 / CASE
IN STOCK Keep shipping documents organized and protected with these adhesive-backed red packing list envelopes. 4.5
Packing List Envelopes

4.5x5.5 2 Mil Red Packing List Envelopes 1000/Case PL438

PN: PL438

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$45.01 / CASE
IN STOCK Professional white side loading stayflat mailers engineered for e-commerce brands shipping documents and photos. .028 chipboard construction with peel-and-seal closure and pull-tab tear strip for effortless opening. Lightweight design reduces postage costs without sacrificing protection–100 per case.
Envelopes & Mailers

9.75x12.25 White Self-Seal Side Loading Chipboard Stayflats Lite Mailers 100/Case

PN: RM129

9 3/4 x 12.25 in .028 Chipboard 100 PER CASE
$80.99 / CASE
IN STOCK Protect documents and photos with confidence using our 6x9 white chipboard side loading Stayflats Lite® mailers. These self-seal, self-adhesive mailing flats feature a peel-and-seal closure with pull-tab tear strip for hassle-free sealing and opening. Sold as a case of 200 lightweight mailers that require no additional stiffeners.
Envelopes & Mailers

6x9 White Side Loading Chipboard Stayflats Lite Mailers 200/Case

PN: RM19SS

6 x 9 in .024 Chipboard 200 PER CASE
$104.65 / CASE
IN STOCK Professional-grade 20
Envelopes & Mailers

20x14.5 #7 Reinforced Self-Seal Mailers 250/Case

PN: B890SS

20 x 14.5 in Heavy-Duty Nylon Fibers 250 PER CASE
$359.41 / CASE
IN STOCK 10.5x16 Nylon Reinforced Self-Seal Mailers #5 - 500/Case
Envelopes & Mailers

10.5x16 #5 Reinforced Self-Seal Mailers 500/Case

PN: B888SS

10 1/2 x 16 in Heavy-Duty Nylon Fibers 500 PER CASE
$514.72 / CASE

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