6x9 Poly Mailers - Self-Seal, 100-Pack
$16.68
/ case of 100$0.17 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
6" × 9"
Board / material
2.5 Mil Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 6" × 9" (L × W) |
|---|---|
| Board / material | 2.5 Mil Polyethylene |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 1.36 lb |
| Outer carton (shipping) | 7.0 × 6.5 × 2.5 in |
| LTL freight class | Class 60 |
| GTIN | 841436058865 |
| SKU | B871100PK |
About this item
SKU B871100PK — 6" × 9", 2.5 Mil Polyethylene, White. Sold as a case of 100, shipped from US warehouses.
The 6x9" Self-Seal Poly Mailers 2.5mil - Puncture Resistant is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 6" x 9"; poly material; 2.5mil; 100 Pack. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Poly mailers: Good fit for shipping clothing, apparel, accessories, documents, returns, and other lightweight non-fragile ecommerce orders. These mailers help ecommerce teams and small businesses choose protective, right-sized packaging for common fulfillment workflows.
Common questions
Will these mailers protect my products from moisture during shipping?
Yes. The 2.5 mil polyethylene construction is water and moisture resistant, protecting contents from rain, humidity, and ground conditions. However, these are not fully waterproof, for fully submersible protection, consider additional cushioning or upgrade to heavy-duty mailers.
Do I need tape to seal these mailers?
No. The integrated self-seal adhesive strip requires only pressure to activate, press and seal in seconds. This eliminates tape costs, speeds fulfillment, and creates a professional, branded appearance without visible adhesive.
Can I print labels and stamps on these mailers?
Yes. The white outer surface is designed for excellent label and ink adhesion. Integrate barcode labels, shipping stamps, or custom branding directly onto the mailer for efficient tracking and professional presentation.
What happens if my package is overstuffed?
The high-strength seams are engineered to withstand overpacking without bursting or opening during transit. The 2.5 mil polyethylene also provides tear resistance if items shift or corners compress.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.