8.5x39" Self-Seal Poly Mailers 2.5 Mil White - Case of 100
$77.34
/ case of 100$0.77 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
8 1/2" × 39"
Board / material
2.5 Mil Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 8 1/2" × 39" (L × W) |
|---|---|
| Board / material | 2.5 Mil Polyethylene |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 6.58 lb |
| Outer carton (shipping) | 13.25 × 9.75 × 3.5 in |
| LTL freight class | Class 60 |
| GTIN | 841436089784 |
| SKU | LPM839 |
About this item
SKU LPM839 — 8 1/2" × 39", 2.5 Mil Polyethylene, White. Sold as a case of 100, shipped from US warehouses.
The 8.5x39" 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 8.5" x 39"; white material; 2.5 Mil; case of 100. 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 the self-seal adhesive hold through rough handling and weather?
Yes. The adhesive strip is engineered to create a permanent, tamper-evident bond that withstands moisture, temperature changes, and carrier handling. Once sealed, the mailer cannot be opened without visible damage.
Is 2.5 mil thick enough to prevent punctures during shipping?
Absolutely. The 2.5 mil polyethylene provides excellent puncture resistance for standard e-commerce shipments. For high-value or fragile items, consider adding internal padding or using our 4 mil option for maximum durability.
Can I customize these mailers with my brand logo?
Yes. Packrift offers custom printing on orders of 5,000+ units. Contact our sales team for design templates, lead times, and pricing.
What products fit best in a 39" long mailer?
These mailers are ideal for rolled posters, blueprints, documents, scarves, leggings, and any elongated items up to 39" in length. The 8 1/2" width accommodates standard rolled sizes without crushing content.
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.