Mailers & Envelopes

Check your size. Plan your quantity.

Open a product’s measurement checker and bundle planner, then carry your SKU and quantity into a delivered quote.

SELECTION EXPERT ADVICE

Match Structure to the Contents
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Compare flexible envelopes, padded mailers and corrugated mailer boxes. Check the packed item and the protection it needs; no single format is suitable for every shipment.
Check Cushioning and Usable Space
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A padded lining takes up interior space and does not guarantee protection for every fragile item. Confirm the usable opening, packed thickness and closure, adding appropriate protection when the item needs it.
Confirm the Closure
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Check whether the selected mailer uses a peel-and-seal strip, tuck closure, tape or separate end caps. Allow room for the packed item and any cushioning so the closure works as intended.

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

Choose a mailer by usable size, format and closure. Compare flexible mailers, padded envelopes, corrugated literature mailers and mailing tubes. Measure the item after adding any cushioning; width and length alone do not show whether a filled mailer will close. For a larger or mixed-format order, request a mailer quote.

Start with the right format

  • Flexible or padded: check the usable opening and room for the item's thickness. A padded lining does not establish that the package is suitable for every fragile item.
  • Corrugated mailer: compare all three inside dimensions and the closure. Check whether the exact SKU needs tape or has a self-seal strip.
  • Mailing tube: confirm usable length, diameter and whether end caps are included. Packing list envelopes hold documents on another package; they are a separate format.

A bulk mailer example

M1433: 14 x 3 x 3 inch white ECT-32 corrugated mailers is a long, narrow format with a 3 x 3 inch inside cross-section. Each bundle contains 50 mailers: 8 bundles supply 400. For a different shape, compare M754: 7 x 5 x 4 inch white literature mailers, 50 per pack. These are different sizes, not interchangeable options.

For a quote, send each SKU or required usable size, format, closure and quantity. Specify individual mailers or packs, the delivery ZIP and required date. Product pages show current prices and availability; delivery depends on the order and destination.

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

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 -> Get a delivered quote for larger orders -> Read the mailers guide -> View products below ->
IN STOCK 10.5x16 Bubble Lined Poly Mailers - Tear-Proof Self-Seal, Case of 100
Envelopes & Mailers

10.5x16 #5 Self-Seal Bubble Mailers 100/Case

PN: B836

10 1/2 x 16 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$54.69 / CASE
IN STOCK Protect fragile items with confidence using these 9.5x14.5 bubble lined poly mailers. Each mailer features 2 mil polyethylene exterior and 3/16" bubble cushioning interior, plus a reliable peel-and-seal closure that saves packing time. Sold as case of 100–the cost-effective choice for high-volume shippers.
Envelopes & Mailers

9.5x14.5 Self-Seal Bubble Lined Poly Mailers 100/Case

PN: B834

9 1/2 x 14 1/2 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$47.18 / CASE
IN STOCK Professional-grade bubble lined poly mailers with 3/16" cushioning protect fragile goods during transit. Peel-and-seal closure, moisture and tear resistant, white polyethylene construction. Ship 100 mailers per case at wholesale pricing.
Envelopes & Mailers

8.5x14.5 #3 White Self-Seal Bubble Mailers 100/Case

PN: B838

8 1/2 x 14 1/2 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$47.70 / CASE
IN STOCK Protect fragile goods with durable 8.5x12" bubble lined poly mailers featuring 3/16" bubble cushioning and a quick peel-and-seal closure. Each case contains 100 white polyethylene envelopes that resist moisture, tears, and tampering–ideal for e-commerce packers and frequent shippers who demand reliable shock protection without the hassle.
Envelopes & Mailers

8.5x12 #2 Self-Seal Bubble Mailers 100/Case

PN: B833

8 1/2 x 12 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$39.45 / CASE
IN STOCK Protect fragile items with these 12 x 7.25" self-seal poly bubble mailers featuring 3/16" bubble cushioning and 2-mil polyethylene construction. Moisture, tear, and tamper resistant with convenient peel-and-seal closure. Ships fast in cases of 100–ideal for e-commerce packers and high-volume shippers.
Envelopes & Mailers

12x7.25 #1 Self-Seal Bubble Mailers 100/Case

PN: B832

12 x 7.25 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$35.89 / CASE
IN STOCK Protect fragile shipments with our 7.25" x 8" white poly bubble mailers. Each case includes 200 self-sealing, tear-proof mailers with integrated bubble cushioning inside. Moisture, tear, and tamper resistant–ideal for e-commerce packers shipping lightweight, delicate items.
Envelopes & Mailers

7.25x8 White Self-Seal Bubble Lined Poly Mailers 200/Case

PN: B827

7.25 x 8 in Polyethylene 200 PER CASE
$79.16 / CASE
IN STOCK Ship fragile items safely with these 6.5x10 bubble lined poly mailers featuring 3/16" protective bubble cushioning and 2 mil polyethylene construction. Peel-and-seal closure, moisture- and tear-resistant design. Case of 250 mailers–ready to pack and ship.
Envelopes & Mailers

6.5x10 White Self-Seal Bubble-Lined Poly Padded Mailers 250/Case

PN: B831

6 1/2 x 10 in 2 Mil Polyethylene / 3/16" Bubble Lining 250 PER CASE
$70.58 / CASE
IN STOCK 10x5 Bubble Lined Poly Mailers 2 Mil White - 250 Case Pack
Envelopes & Mailers

10x5 #00 2 Mil White Self-Seal Bubble Mailers 250/Case

PN: B829

10 x 5 in 2 Mil Polyethylene / 3/16" Bubble Lining 250 PER CASE
$65.87 / CASE
IN STOCK Ship fragile items with confidence using these 8x4 self-seal bubble mailers. Each case contains 500 white polyethylene envelopes with 3/16" bubble lining for superior shock protection. Peel-and-seal closure, moisture-resistant, and UPS-eligible for seamless fulfillment.
Envelopes & Mailers

8x4 #000 White Self-Seal Bubble Mailers 500/Case

PN: B828

8 x 4 in 2 Mil Polyethylene / 3/16" Bubble Lining 500 PER CASE
$105.61 / CASE

Request Custom Quote

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