9.5x45" Self-Seal Poly Mailers 2.5 Mil White - 50/Case
$42.53
/ case of 50$0.85 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9 1/2" × 45"
Board / material
2.5 Mil Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 9 1/2" × 45" (L × W) |
|---|---|
| Board / material | 2.5 Mil Polyethylene |
| Color | White |
| Sold as | Case of 50 |
| Order in multiples of | 1 |
| Case weight | 4.32 lb |
| Outer carton (shipping) | 10.75 × 9.0 × 3.25 in |
| LTL freight class | Class 60 |
| GTIN | 841436089791 |
| SKU | LPM945 |
About this item
SKU LPM945 — 9 1/2" × 45", 2.5 Mil Polyethylene, White. Sold as a case of 50, shipped from US warehouses.
The 9.5x45" Self-Seal Poly Mailers 2.5 Mil White is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 9.5" x 45"; white material; 2.5 Mil; case of 50. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Large poly mailers: Good fit for shipping clothing, apparel, soft goods, returns, catalog packs, and other 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 work for items longer than 45 inches?
No, the 45" length is the maximum for this mailer. For longer items, consider our extended-length poly mailer options or alternative protective packaging. Oversizing will compromise the self-seal closure effectiveness and increase shipping costs.
How strong is the self-seal adhesive strip?
The pressure-sensitive adhesive provides a secure, tamper-evident closure that withstands standard shipping conditions and handling. Simply peel back the strip liner and press firmly for 2-3 seconds. The seal maintains integrity through sorting, scanning, and multi-carrier transit.
Can I write on these mailers with a marker or label?
Yes, the white polyethylene surface accepts markers, ballpoint pens, and thermal printer labels. We recommend testing ink adhesion and drying time with your specific marking method before full production runs.
Are these mailers weather-resistant for outdoor storage or delivery?
These mailers are moisture-resistant and protect contents from light rain and humidity exposure. However, they are not waterproof and should not be stored in standing water or extreme weather. For extended outdoor exposure, consider adding additional protective wrapping.
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.